Home

Context Navigation

init_particles.f90 @ 667

Last change on this file since 667 was 667, checked in by suehring, 14 years ago

summary:

Gryschka:

Coupling with different resolution and different numbers of PEs in ocean and atmosphere is available
Exchange of u and v from ocean surface to atmosphere surface
Mirror boundary condition for u and v at the bottom are replaced by dirichlet boundary conditions
Inflow turbulence is now defined by flucuations around spanwise mean
Bugfixes for cyclic_fill and constant_volume_flow

Suehring:

New advection added ( Wicker and Skamarock 5th order ), therefore:
- New module advec_ws.f90
- Modified exchange of ghost boundaries.
- Modified evaluation of turbulent fluxes
- New index bounds nxlg, nxrg, nysg, nyng

advec_ws.f90

Advection scheme for scalars and momentum using the flux formulation of
Wicker and Skamarock 5th order.
Additionally the module contains of a routine using for initialisation and
steering of the statical evaluation. The computation of turbulent fluxes takes
place inside the advection routines.
In case of vector architectures Dirichlet and Radiation boundary conditions are
outstanding and not available. Furthermore simulations within topography are
not possible so far. A further routine local_diss_ij is available and is used
if a control of dissipative fluxes is desired.

check_parameters.f90

Exchange of parameters between ocean and atmosphere via PE0
Check for illegal combination of ws-scheme and timestep scheme.
Check for topography and ws-scheme.
Check for not cyclic boundary conditions in combination with ws-scheme and
loop_optimization = 'vector'.
Check for call_psolver_at_all_substeps and ws-scheme for momentum_advec.

Different processor/grid topology in atmosphere and ocean is now allowed!
Bugfixes in checking for conserve_volume_flow_mode.

exchange_horiz.f90

Dynamic exchange of ghost points with nbgp_local to ensure that no useless
ghost points exchanged in case of multigrid. type_yz(0) and type_xz(0) used for
normal grid, the remaining types used for the several grid levels.
Exchange is done via MPI-Vectors with a dynamic value of ghost points which
depend on the advection scheme. Exchange of left and right PEs is 10% faster
with MPI-Vectors than without.

flow_statistics.f90

When advection is computed with ws-scheme, turbulent fluxes are already
computed in the respective advection routines and buffered in arrays
sums_xxxx_ws_l(). This is due to a consistent treatment of statistics
with the numerics and to avoid unphysical kinks near the surface. So some if-
requests has to be done to dicern between fluxes from ws-scheme other advection
schemes. Furthermore the computation of z_i is only done if the heat flux
exceeds a minimum value. This affects only simulations of a neutral boundary
layer and is due to reasons of computations in the advection scheme.

inflow_turbulence.f90

Using nbgp recycling planes for a better resolution of the turbulent flow near
the inflow.

init_grid.f90

Definition of new array bounds nxlg, nxrg, nysg, nyng on each PE.
Furthermore the allocation of arrays and steering of loops is done with these
parameters. Call of exchange_horiz are modified.
In case of dirichlet bounday condition at the bottom zu(0)=0.0
dzu_mg has to be set explicitly for a equally spaced grid near bottom.
ddzu_pres added to use a equally spaced grid near bottom.

init_pegrid.f90

Moved determination of target_id's from init_coupling
Determination of parameters needed for coupling (coupling_topology, ngp_a, ngp_o)
with different grid/processor-topology in ocean and atmosphere

Adaption of ngp_xy, ngp_y to a dynamic number of ghost points.
The maximum_grid_level changed from 1 to 0. 0 is the normal grid, 1 to
maximum_grid_level the grids for multigrid, in which 0 and 1 are normal grids.
This distinction is due to reasons of data exchange and performance for the
normal grid and grids in poismg.
The definition of MPI-Vectors adapted to a dynamic numer of ghost points.
New MPI-Vectors for data exchange between left and right boundaries added.
This is due to reasons of performance (10% faster).

ATTENTION: nnz_x undefined problem still has to be solved!!!!!!!!
TEST OUTPUT (TO BE REMOVED) logging mpi2 ierr values

parin.f90

Steering parameter dissipation_control added in inipar.

Makefile

Module advec_ws added.

Modules

Removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc

For coupling with different resolution in ocean and atmophere:
+nx_a, +nx_o, ny_a, +ny_o, ngp_a, ngp_o, +total_2d_o, +total_2d_a,
+coupling_topology

Buffer arrays for the left sided advective fluxes added in arrays_3d.
+flux_s_u, +flux_s_v, +flux_s_w, +diss_s_u, +diss_s_v, +diss_s_w,
+flux_s_pt, +diss_s_pt, +flux_s_e, +diss_s_e, +flux_s_q, +diss_s_q,
+flux_s_sa, +diss_s_sa
3d arrays for dissipation control added. (only necessary for vector arch.)
+var_x, +var_y, +var_z, +gamma_x, +gamma_y, +gamma_z
Default of momentum_advec and scalar_advec changed to 'ws-scheme' .
+exchange_mg added in control_parameters to steer the data exchange.
Parameters +nbgp, +nxlg, +nxrg, +nysg, +nyng added in indices.
flag array +boundary_flags added in indices to steer the degradation of order
of the advective fluxes when non-cyclic boundaries are used.
MPI-datatypes +type_y, +type_y_int and +type_yz for data_exchange added in
pegrid.
+sums_wsus_ws_l, +sums_wsvs_ws_l, +sums_us2_ws_l, +sums_vs2_ws_l,
+sums_ws2_ws_l, +sums_wspts_ws_l, +sums_wssas_ws_l, +sums_wsqs_ws_l
and +weight_substep added in statistics to steer the statistical evaluation
of turbulent fluxes in the advection routines.
LOGICALS +ws_scheme_sca and +ws_scheme_mom added to get a better performance
in prognostic_equations.
LOGICAL +dissipation_control control added to steer numerical dissipation
in ws-scheme.

Changed length of string run_description_header

pres.f90

New allocation of tend when ws-scheme and multigrid is used. This is due to
reasons of perforance of the data_exchange. The same is done with p after
poismg is called.
nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng when no
multigrid is used. Calls of exchange_horiz are modified.

bugfix: After pressure correction no volume flow correction in case of
non-cyclic boundary conditions
(has to be done only before pressure correction)

Call of SOR routine is referenced with ddzu_pres.

prognostic_equations.f90

Calls of the advection routines with WS5 added.
Calls of ws_statistics added to set the statistical arrays to zero after each
time step.

advec_particles.f90

Declaration of de_dx, de_dy, de_dz adapted to additional ghost points.
Furthermore the calls of exchange_horiz were modified.

asselin_filter.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

average_3d_data.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

boundary_conds.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng
Removed mirror boundary conditions for u and v at the bottom in case of
ibc_uv_b == 0. Instead, dirichelt boundary conditions (u=v=0) are set
in init_3d_model

calc_liquid_water_content.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

calc_spectra.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng for
allocation of tend.

check_open.f90

Output of total array size was adapted to nbgp.

data_output_2d.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
allocation of arrays local_2d and total_2d.
Calls of exchange_horiz are modified.

data_output_2d.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
allocation of arrays. Calls of exchange_horiz are modified.
Skip-value skip_do_avs changed to a dynamic adaption of ghost points.

data_output_mask.f90

Calls of exchange_horiz are modified.

diffusion_e.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusion_s.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusion_u.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusion_v.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusion_w.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusivities.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusivities.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.
Calls of exchange_horiz are modified.

exchange_horiz_2d.f90

Dynamic exchange of ghost points with nbgp, which depends on the advection
scheme. Exchange between left and right PEs is now done with MPI-vectors.

global_min_max.f90

Adapting of the index arrays, because MINLOC assumes lowerbound
at 1 and not at nbgp.

init_3d_model.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
allocation of arrays. Calls of exchange_horiz are modified.
Call ws_init to initialize arrays needed for statistical evaluation and
optimization when ws-scheme is used.
Initial volume flow is now calculated by using the variable hom_sum.
Therefore the correction of initial volume flow for non-flat topography
removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
mirror bc to dirichlet boundary conditions (u=v=0), so that k=nzb is
representative for the height z0

Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)

init_coupling.f90

determination of target_id's moved to init_pegrid

init_pt_anomaly.f90

Call of exchange_horiz are modified.

init_rankine.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.
Calls of exchange_horiz are modified.

init_slope.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

header.f90

Output of advection scheme.

poismg.f90

Calls of exchange_horiz are modified.

prandtl_fluxes.f90

Changed surface boundary conditions for u and v from mirror bc to dirichelt bc,
therefore u(uzb,:,:) and v(nzb,:,:) is now representative for the height z0
nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

production_e.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

read_3d_binary.f90

+/- 1 replaced with +/- nbgp when swapping and allocating variables.

sor.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.
Call of exchange_horiz are modified.
bug removed in declaration of ddzw(), nz replaced by nzt+1

subsidence.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

sum_up_3d_data.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

surface_coupler.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in
MPI_SEND() and MPI_RECV.
additional case for nonequivalent processor and grid topopolgy in ocean and
atmosphere added (coupling_topology = 1)

Added exchange of u and v from Ocean to Atmosphere

time_integration.f90

Calls of exchange_horiz are modified.
Adaption to slooping surface.

timestep.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

user_3d_data_averaging.f90, user_data_output_2d.f90, user_data_output_3d.f90,
user_actions.f90, user_init.f90, user_init_plant_canopy.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

user_read_restart_data.f90

Allocation with nbgp.

wall_fluxes.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

write_compressed.f90

Array bounds and nx, ny adapted with nbgp.

sor.f90

bug removed in declaration of ddzw(), nz replaced by nzt+1

Property svn:keywords set to Id

File size: 22.1 KB

Rev	Line
[1]	1	SUBROUTINE init_particles
	2
	3	!------------------------------------------------------------------------------!
[254]	4	! Current revisions:
[1]	5	! -----------------
[667]	6	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng for allocation
	7	! of arrays.
[392]	8	!
	9	! Former revisions:
	10	! -----------------
	11	! $Id: init_particles.f90 667 2010-12-23 12:06:00Z suehring $
	12	!
[623]	13	! 622 2010-12-10 08:08:13Z raasch
	14	! optional barriers included in order to speed up collective operations
	15	!
[392]	16	! 336 2009-06-10 11:19:35Z raasch
[276]	17	! Maximum number of tails is calculated from maximum number of particles and
	18	! skip_particles_for_tail,
	19	! output of messages replaced by message handling routine
[229]	20	! Bugfix: arrays for tails are allocated with a minimum size of 10 tails if
	21	! there is no tail initially
[1]	22	!
[198]	23	! 150 2008-02-29 08:19:58Z raasch
	24	! Setting offset_ocean_* needed for calculating vertical indices within ocean
	25	! runs
	26	!
[139]	27	! 117 2007-10-11 03:27:59Z raasch
	28	! Sorting of particles only in case of cloud droplets
	29	!
[110]	30	! 106 2007-08-16 14:30:26Z raasch
	31	! variable iran replaced by iran_part
	32	!
[83]	33	! 82 2007-04-16 15:40:52Z raasch
	34	! Preprocessor directives for old systems removed
	35	!
[77]	36	! 70 2007-03-18 23:46:30Z raasch
	37	! displacements for mpi_particle_type changed, age_m initialized,
	38	! particles-package is now part of the default code
	39	!
[39]	40	! 16 2007-02-15 13:16:47Z raasch
	41	! Bugfix: MPI_REAL in MPI_ALLREDUCE replaced by MPI_INTEGER
	42	!
	43	! r4 \| raasch \| 2007-02-13 12:33:16 +0100 (Tue, 13 Feb 2007)
[3]	44	! RCS Log replace by Id keyword, revision history cleaned up
	45	!
[1]	46	! Revision 1.24 2007/02/11 13:00:17 raasch
	47	! Bugfix: allocation of tail_mask and new_tail_id in case of restart-runs
	48	! Bugfix: __ was missing in a cpp-directive
	49	!
	50	! Revision 1.1 1999/11/25 16:22:38 raasch
	51	! Initial revision
	52	!
	53	!
	54	! Description:
	55	! ------------
	56	! This routine initializes a set of particles and their attributes (position,
	57	! radius, ..). Advection of these particles is carried out by advec_particles,
	58	! plotting is done in data_output_dvrp.
	59	!------------------------------------------------------------------------------!
	60
	61	USE arrays_3d
	62	USE control_parameters
[336]	63	USE dvrp_variables
[1]	64	USE grid_variables
	65	USE indices
	66	USE particle_attributes
	67	USE pegrid
	68	USE random_function_mod
	69
	70
	71	IMPLICIT NONE
	72
	73	CHARACTER (LEN=10) :: particle_binary_version, version_on_file
	74
	75	INTEGER :: i, j, n, nn
	76	#if defined( __parallel )
	77	INTEGER, DIMENSION(3) :: blocklengths, displacements, types
	78	#endif
	79	LOGICAL :: uniform_particles_l
	80	REAL :: factor, pos_x, pos_y, pos_z, value
	81
	82
	83	#if defined( __parallel )
	84	!
	85	!-- Define MPI derived datatype for FORTRAN datatype particle_type (see module
[82]	86	!-- particle_attributes). Integer length is 4 byte, Real is 8 byte
	87	blocklengths(1) = 19; blocklengths(2) = 4; blocklengths(3) = 1
	88	displacements(1) = 0; displacements(2) = 152; displacements(3) = 168
	89
[1]	90	types(1) = MPI_REAL
	91	types(2) = MPI_INTEGER
	92	types(3) = MPI_UB
	93	CALL MPI_TYPE_STRUCT( 3, blocklengths, displacements, types, &
	94	mpi_particle_type, ierr )
	95	CALL MPI_TYPE_COMMIT( mpi_particle_type, ierr )
	96	#endif
	97
	98	!
[150]	99	!-- In case of oceans runs, the vertical index calculations need an offset,
	100	!-- because otherwise the k indices will become negative
	101	IF ( ocean ) THEN
	102	offset_ocean_nzt = nzt
	103	offset_ocean_nzt_m1 = nzt - 1
	104	ENDIF
	105
	106
	107	!
[1]	108	!-- Check the number of particle groups.
	109	IF ( number_of_particle_groups > max_number_of_particle_groups ) THEN
[274]	110	WRITE( message_string, * ) 'max_number_of_particle_groups =', &
	111	max_number_of_particle_groups , &
[254]	112	'&number_of_particle_groups reset to ', &
	113	max_number_of_particle_groups
	114	CALL message( 'init_particles', 'PA0213', 0, 1, 0, 6, 0 )
[1]	115	number_of_particle_groups = max_number_of_particle_groups
	116	ENDIF
	117
	118	!
	119	!-- Set default start positions, if necessary
	120	IF ( psl(1) == 9999999.9 ) psl(1) = -0.5 * dx
	121	IF ( psr(1) == 9999999.9 ) psr(1) = ( nx + 0.5 ) * dx
	122	IF ( pss(1) == 9999999.9 ) pss(1) = -0.5 * dy
	123	IF ( psn(1) == 9999999.9 ) psn(1) = ( ny + 0.5 ) * dy
	124	IF ( psb(1) == 9999999.9 ) psb(1) = zu(nz/2)
	125	IF ( pst(1) == 9999999.9 ) pst(1) = psb(1)
	126
	127	IF ( pdx(1) == 9999999.9 .OR. pdx(1) == 0.0 ) pdx(1) = dx
	128	IF ( pdy(1) == 9999999.9 .OR. pdy(1) == 0.0 ) pdy(1) = dy
	129	IF ( pdz(1) == 9999999.9 .OR. pdz(1) == 0.0 ) pdz(1) = zu(2) - zu(1)
	130
	131	DO j = 2, number_of_particle_groups
	132	IF ( psl(j) == 9999999.9 ) psl(j) = psl(j-1)
	133	IF ( psr(j) == 9999999.9 ) psr(j) = psr(j-1)
	134	IF ( pss(j) == 9999999.9 ) pss(j) = pss(j-1)
	135	IF ( psn(j) == 9999999.9 ) psn(j) = psn(j-1)
	136	IF ( psb(j) == 9999999.9 ) psb(j) = psb(j-1)
	137	IF ( pst(j) == 9999999.9 ) pst(j) = pst(j-1)
	138	IF ( pdx(j) == 9999999.9 .OR. pdx(j) == 0.0 ) pdx(j) = pdx(j-1)
	139	IF ( pdy(j) == 9999999.9 .OR. pdy(j) == 0.0 ) pdy(j) = pdy(j-1)
	140	IF ( pdz(j) == 9999999.9 .OR. pdz(j) == 0.0 ) pdz(j) = pdz(j-1)
	141	ENDDO
	142
	143	!
	144	!-- For the first model run of a possible job chain initialize the
	145	!-- particles, otherwise read the particle data from file.
	146	IF ( TRIM( initializing_actions ) == 'read_restart_data' &
	147	.AND. read_particles_from_restartfile ) THEN
	148
	149	!
	150	!-- Read particle data from previous model run.
	151	!-- First open the input unit.
	152	IF ( myid_char == '' ) THEN
	153	OPEN ( 90, FILE='PARTICLE_RESTART_DATA_IN'//myid_char, &
	154	FORM='UNFORMATTED' )
	155	ELSE
	156	OPEN ( 90, FILE='PARTICLE_RESTART_DATA_IN/'//myid_char, &
	157	FORM='UNFORMATTED' )
	158	ENDIF
	159
	160	!
	161	!-- First compare the version numbers
	162	READ ( 90 ) version_on_file
	163	particle_binary_version = '3.0'
	164	IF ( TRIM( version_on_file ) /= TRIM( particle_binary_version ) ) THEN
[274]	165	message_string = 'version mismatch concerning data from prior ' // &
	166	'run &version on file = "' // &
	167	TRIM( version_on_file ) // &
	168	'&version in program = "' // &
	169	TRIM( particle_binary_version ) // '"'
[254]	170	CALL message( 'init_particles', 'PA0214', 1, 2, 0, 6, 0 )
[1]	171	ENDIF
	172
	173	!
	174	!-- Read some particle parameters and the size of the particle arrays,
	175	!-- allocate them and read their contents.
	176	READ ( 90 ) bc_par_b, bc_par_lr, bc_par_ns, bc_par_t, &
	177	maximum_number_of_particles, maximum_number_of_tailpoints, &
	178	maximum_number_of_tails, number_of_initial_particles, &
	179	number_of_particles, number_of_particle_groups, &
	180	number_of_tails, particle_groups, time_prel, &
	181	time_write_particle_data, uniform_particles
	182
	183	IF ( number_of_initial_particles /= 0 ) THEN
	184	ALLOCATE( initial_particles(1:number_of_initial_particles) )
	185	READ ( 90 ) initial_particles
	186	ENDIF
	187
[667]	188	ALLOCATE( prt_count(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	189	prt_start_index(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1]	190	particle_mask(maximum_number_of_particles), &
	191	particles(maximum_number_of_particles) )
	192
	193	READ ( 90 ) prt_count, prt_start_index
	194	READ ( 90 ) particles
	195
	196	IF ( use_particle_tails ) THEN
	197	ALLOCATE( particle_tail_coordinates(maximum_number_of_tailpoints,5, &
	198	maximum_number_of_tails), &
	199	new_tail_id(maximum_number_of_tails), &
	200	tail_mask(maximum_number_of_tails) )
	201	READ ( 90 ) particle_tail_coordinates
	202	ENDIF
	203
	204	CLOSE ( 90 )
	205
	206	ELSE
	207
	208	!
	209	!-- Allocate particle arrays and set attributes of the initial set of
	210	!-- particles, which can be also periodically released at later times.
	211	!-- Also allocate array for particle tail coordinates, if needed.
[667]	212	ALLOCATE( prt_count(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
	213	prt_start_index(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
[1]	214	particle_mask(maximum_number_of_particles), &
	215	particles(maximum_number_of_particles) )
	216
	217	!
	218	!-- Initialize all particles with dummy values (otherwise errors may
	219	!-- occur within restart runs). The reason for this is still not clear
	220	!-- and may be presumably caused by errors in the respective user-interface.
	221	particles = particle_type( 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, &
	222	0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, &
[57]	223	0.0, 0, 0, 0, 0 )
[1]	224	particle_groups = particle_groups_type( 0.0, 0.0, 0.0, 0.0 )
	225
	226	!
	227	!-- Set the default particle size used for dvrp plots
	228	IF ( dvrp_psize == 9999999.9 ) dvrp_psize = 0.2 * dx
	229
	230	!
	231	!-- Set values for the density ratio and radius for all particle
	232	!-- groups, if necessary
	233	IF ( density_ratio(1) == 9999999.9 ) density_ratio(1) = 0.0
	234	IF ( radius(1) == 9999999.9 ) radius(1) = 0.0
	235	DO i = 2, number_of_particle_groups
	236	IF ( density_ratio(i) == 9999999.9 ) THEN
	237	density_ratio(i) = density_ratio(i-1)
	238	ENDIF
	239	IF ( radius(i) == 9999999.9 ) radius(i) = radius(i-1)
	240	ENDDO
	241
	242	DO i = 1, number_of_particle_groups
	243	IF ( density_ratio(i) /= 0.0 .AND. radius(i) == 0 ) THEN
[254]	244	WRITE( message_string, * ) 'particle group #', i, 'has a', &
	245	'density ratio /= 0 but radius = 0'
	246	CALL message( 'init_particles', 'PA0215', 1, 2, 0, 6, 0 )
[1]	247	ENDIF
	248	particle_groups(i)%density_ratio = density_ratio(i)
	249	particle_groups(i)%radius = radius(i)
	250	ENDDO
	251
	252	!
	253	!-- Calculate particle positions and store particle attributes, if
	254	!-- particle is situated on this PE
	255	n = 0
	256
	257	DO i = 1, number_of_particle_groups
	258
	259	pos_z = psb(i)
	260
	261	DO WHILE ( pos_z <= pst(i) )
	262
	263	pos_y = pss(i)
	264
	265	DO WHILE ( pos_y <= psn(i) )
	266
	267	IF ( pos_y >= ( nys - 0.5 ) * dy .AND. &
	268	pos_y < ( nyn + 0.5 ) * dy ) THEN
	269
	270	pos_x = psl(i)
	271
	272	DO WHILE ( pos_x <= psr(i) )
	273
	274	IF ( pos_x >= ( nxl - 0.5 ) * dx .AND. &
	275	pos_x < ( nxr + 0.5 ) * dx ) THEN
	276
	277	DO j = 1, particles_per_point
	278
	279	n = n + 1
	280	IF ( n > maximum_number_of_particles ) THEN
[254]	281	WRITE( message_string, * ) 'number of initial', &
[274]	282	'particles (', n, ') exceeds', &
	283	'&maximum_number_of_particles (', &
	284	maximum_number_of_particles, ') on PE ', &
[254]	285	myid
[274]	286	CALL message( 'init_particles', 'PA0216', &
[277]	287	2, 2, -1, 6, 1 )
[1]	288	ENDIF
	289	particles(n)%x = pos_x
	290	particles(n)%y = pos_y
	291	particles(n)%z = pos_z
	292	particles(n)%age = 0.0
[57]	293	particles(n)%age_m = 0.0
[1]	294	particles(n)%dt_sum = 0.0
	295	particles(n)%dvrp_psize = dvrp_psize
	296	particles(n)%e_m = 0.0
	297	particles(n)%speed_x = 0.0
	298	particles(n)%speed_x_sgs = 0.0
	299	particles(n)%speed_y = 0.0
	300	particles(n)%speed_y_sgs = 0.0
	301	particles(n)%speed_z = 0.0
	302	particles(n)%speed_z_sgs = 0.0
	303	particles(n)%origin_x = pos_x
	304	particles(n)%origin_y = pos_y
	305	particles(n)%origin_z = pos_z
	306	particles(n)%radius = particle_groups(i)%radius
	307	particles(n)%weight_factor =initial_weighting_factor
	308	particles(n)%color = 1
	309	particles(n)%group = i
	310	particles(n)%tailpoints = 0
	311	IF ( use_particle_tails .AND. &
	312	MOD( n, skip_particles_for_tail ) == 0 ) THEN
	313	number_of_tails = number_of_tails + 1
	314	!
	315	!-- This is a temporary provisional setting (see
	316	!-- further below!)
	317	particles(n)%tail_id = number_of_tails
	318	ELSE
	319	particles(n)%tail_id = 0
	320	ENDIF
	321
	322	ENDDO
	323
	324	ENDIF
	325
	326	pos_x = pos_x + pdx(i)
	327
	328	ENDDO
	329
	330	ENDIF
	331
	332	pos_y = pos_y + pdy(i)
	333
	334	ENDDO
	335
	336	pos_z = pos_z + pdz(i)
	337
	338	ENDDO
	339
	340	ENDDO
	341
	342	number_of_initial_particles = n
	343	number_of_particles = n
	344
	345	!
	346	!-- Calculate the number of particles and tails of the total domain
	347	#if defined( __parallel )
[622]	348	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[1]	349	CALL MPI_ALLREDUCE( number_of_particles, total_number_of_particles, 1, &
[16]	350	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[622]	351	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[1]	352	CALL MPI_ALLREDUCE( number_of_tails, total_number_of_tails, 1, &
[16]	353	MPI_INTEGER, MPI_SUM, comm2d, ierr )
[1]	354	#else
	355	total_number_of_particles = number_of_particles
	356	total_number_of_tails = number_of_tails
	357	#endif
	358
	359	!
	360	!-- Set a seed value for the random number generator to be exclusively
	361	!-- used for the particle code. The generated random numbers should be
	362	!-- different on the different PEs.
	363	iran_part = iran_part + myid
	364
	365	!
	366	!-- User modification of initial particles
	367	CALL user_init_particles
	368
	369	!
	370	!-- Store the initial set of particles for release at later times
	371	IF ( number_of_initial_particles /= 0 ) THEN
	372	ALLOCATE( initial_particles(1:number_of_initial_particles) )
	373	initial_particles(1:number_of_initial_particles) = &
	374	particles(1:number_of_initial_particles)
	375	ENDIF
	376
	377	!
	378	!-- Add random fluctuation to particle positions
	379	IF ( random_start_position ) THEN
	380
	381	DO n = 1, number_of_initial_particles
	382	IF ( psl(particles(n)%group) /= psr(particles(n)%group) ) THEN
	383	particles(n)%x = particles(n)%x + &
[106]	384	( random_function( iran_part ) - 0.5 ) * &
[1]	385	pdx(particles(n)%group)
	386	IF ( particles(n)%x <= ( nxl - 0.5 ) * dx ) THEN
	387	particles(n)%x = ( nxl - 0.4999999999 ) * dx
	388	ELSEIF ( particles(n)%x >= ( nxr + 0.5 ) * dx ) THEN
	389	particles(n)%x = ( nxr + 0.4999999999 ) * dx
	390	ENDIF
	391	ENDIF
	392	IF ( pss(particles(n)%group) /= psn(particles(n)%group) ) THEN
	393	particles(n)%y = particles(n)%y + &
[106]	394	( random_function( iran_part ) - 0.5 ) * &
[1]	395	pdy(particles(n)%group)
	396	IF ( particles(n)%y <= ( nys - 0.5 ) * dy ) THEN
	397	particles(n)%y = ( nys - 0.4999999999 ) * dy
	398	ELSEIF ( particles(n)%y >= ( nyn + 0.5 ) * dy ) THEN
	399	particles(n)%y = ( nyn + 0.4999999999 ) * dy
	400	ENDIF
	401	ENDIF
	402	IF ( psb(particles(n)%group) /= pst(particles(n)%group) ) THEN
	403	particles(n)%z = particles(n)%z + &
[106]	404	( random_function( iran_part ) - 0.5 ) * &
[1]	405	pdz(particles(n)%group)
	406	ENDIF
	407	ENDDO
	408	ENDIF
	409
	410	!
[117]	411	!-- Sort particles in the sequence the gridboxes are stored in the memory.
	412	!-- Only required if cloud droplets are used.
	413	IF ( cloud_droplets ) CALL sort_particles
[1]	414
	415	!
	416	!-- Open file for statistical informations about particle conditions
	417	IF ( write_particle_statistics ) THEN
	418	CALL check_open( 80 )
	419	WRITE ( 80, 8000 ) current_timestep_number, simulated_time, &
	420	number_of_initial_particles, &
	421	maximum_number_of_particles
	422	CALL close_file( 80 )
	423	ENDIF
	424
	425	!
	426	!-- Check if particles are really uniform in color and radius (dvrp_size)
	427	!-- (uniform_particles is preset TRUE)
	428	IF ( uniform_particles ) THEN
	429	IF ( number_of_initial_particles == 0 ) THEN
	430	uniform_particles_l = .TRUE.
	431	ELSE
	432	n = number_of_initial_particles
	433	IF ( MINVAL( particles(1:n)%dvrp_psize ) == &
	434	MAXVAL( particles(1:n)%dvrp_psize ) .AND. &
	435	MINVAL( particles(1:n)%color ) == &
	436	MAXVAL( particles(1:n)%color ) ) THEN
	437	uniform_particles_l = .TRUE.
	438	ELSE
	439	uniform_particles_l = .FALSE.
	440	ENDIF
	441	ENDIF
	442
	443	#if defined( __parallel )
[622]	444	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
[1]	445	CALL MPI_ALLREDUCE( uniform_particles_l, uniform_particles, 1, &
	446	MPI_LOGICAL, MPI_LAND, comm2d, ierr )
	447	#else
	448	uniform_particles = uniform_particles_l
	449	#endif
	450
	451	ENDIF
	452
	453	!
[336]	454	!-- Particles will probably become none-uniform, if their size and color
	455	!-- will be determined by flow variables
	456	IF ( particle_color /= 'none' .OR. particle_dvrpsize /= 'none' ) THEN
	457	uniform_particles = .FALSE.
	458	ENDIF
	459
	460	!
[1]	461	!-- Set the beginning of the particle tails and their age
	462	IF ( use_particle_tails ) THEN
	463	!
[276]	464	!-- Choose the maximum number of tails with respect to the maximum number
	465	!-- of particles and skip_particles_for_tail
	466	maximum_number_of_tails = maximum_number_of_particles / &
	467	skip_particles_for_tail
	468
[229]	469	!
	470	!-- Create a minimum number of tails in case that there is no tail
	471	!-- initially (otherwise, index errors will occur when adressing the
	472	!-- arrays below)
	473	IF ( maximum_number_of_tails == 0 ) maximum_number_of_tails = 10
[1]	474
	475	ALLOCATE( particle_tail_coordinates(maximum_number_of_tailpoints,5, &
	476	maximum_number_of_tails), &
	477	new_tail_id(maximum_number_of_tails), &
	478	tail_mask(maximum_number_of_tails) )
	479
	480	particle_tail_coordinates = 0.0
	481	minimum_tailpoint_distance = minimum_tailpoint_distance**2
	482	number_of_initial_tails = number_of_tails
	483
	484	nn = 0
	485	DO n = 1, number_of_particles
	486	!
	487	!-- Only for those particles marked above with a provisional tail_id
	488	!-- tails will be created. Particles now get their final tail_id.
	489	IF ( particles(n)%tail_id /= 0 ) THEN
	490
	491	nn = nn + 1
	492	particles(n)%tail_id = nn
	493
	494	particle_tail_coordinates(1,1,nn) = particles(n)%x
	495	particle_tail_coordinates(1,2,nn) = particles(n)%y
	496	particle_tail_coordinates(1,3,nn) = particles(n)%z
	497	particle_tail_coordinates(1,4,nn) = particles(n)%color
	498	particles(n)%tailpoints = 1
	499	IF ( minimum_tailpoint_distance /= 0.0 ) THEN
	500	particle_tail_coordinates(2,1,nn) = particles(n)%x
	501	particle_tail_coordinates(2,2,nn) = particles(n)%y
	502	particle_tail_coordinates(2,3,nn) = particles(n)%z
	503	particle_tail_coordinates(2,4,nn) = particles(n)%color
	504	particle_tail_coordinates(1:2,5,nn) = 0.0
	505	particles(n)%tailpoints = 2
	506	ENDIF
	507
	508	ENDIF
	509	ENDDO
	510	ENDIF
	511
	512	!
	513	!-- Plot initial positions of particles (only if particle advection is
	514	!-- switched on from the beginning of the simulation (t=0))
	515	IF ( particle_advection_start == 0.0 ) CALL data_output_dvrp
	516
	517	ENDIF
	518
	519	!
	520	!-- Check boundary condition and set internal variables
	521	SELECT CASE ( bc_par_b )
	522
	523	CASE ( 'absorb' )
	524	ibc_par_b = 1
	525
	526	CASE ( 'reflect' )
	527	ibc_par_b = 2
	528
	529	CASE DEFAULT
[254]	530	WRITE( message_string, * ) 'unknown boundary condition ', &
	531	'bc_par_b = "', TRIM( bc_par_b ), '"'
	532	CALL message( 'init_particles', 'PA0217', 1, 2, 0, 6, 0 )
[1]	533
	534	END SELECT
	535	SELECT CASE ( bc_par_t )
	536
	537	CASE ( 'absorb' )
	538	ibc_par_t = 1
	539
	540	CASE ( 'reflect' )
	541	ibc_par_t = 2
	542
	543	CASE DEFAULT
[254]	544	WRITE( message_string, * ) 'unknown boundary condition ', &
	545	'bc_par_t = "', TRIM( bc_par_t ), '"'
	546	CALL message( 'init_particles', 'PA0218', 1, 2, 0, 6, 0 )
[1]	547
	548	END SELECT
	549	SELECT CASE ( bc_par_lr )
	550
	551	CASE ( 'cyclic' )
	552	ibc_par_lr = 0
	553
	554	CASE ( 'absorb' )
	555	ibc_par_lr = 1
	556
	557	CASE ( 'reflect' )
	558	ibc_par_lr = 2
	559
	560	CASE DEFAULT
[254]	561	WRITE( message_string, * ) 'unknown boundary condition ', &
	562	'bc_par_lr = "', TRIM( bc_par_lr ), '"'
	563	CALL message( 'init_particles', 'PA0219', 1, 2, 0, 6, 0 )
[1]	564
	565	END SELECT
	566	SELECT CASE ( bc_par_ns )
	567
	568	CASE ( 'cyclic' )
	569	ibc_par_ns = 0
	570
	571	CASE ( 'absorb' )
	572	ibc_par_ns = 1
	573
	574	CASE ( 'reflect' )
	575	ibc_par_ns = 2
	576
	577	CASE DEFAULT
[254]	578	WRITE( message_string, * ) 'unknown boundary condition ', &
	579	'bc_par_ns = "', TRIM( bc_par_ns ), '"'
	580	CALL message( 'init_particles', 'PA0220', 1, 2, 0, 6, 0 )
[1]	581
	582	END SELECT
	583	!
	584	!-- Formats
	585	8000 FORMAT (I6,1X,F7.2,4X,I6,71X,I6)
	586
	587	END SUBROUTINE init_particles

Note: See TracBrowser for help on using the repository browser.

Context Navigation

source: palm/trunk/SOURCE/init_particles.f90 @ 667

Download in other formats: