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init_particles.f90 @ 833

Last change on this file since 833 was 829, checked in by raasch, 13 years ago
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1	SUBROUTINE init_particles
2
3	!------------------------------------------------------------------------------!
4	! Current revisions:
5	! -----------------
6	!
7	!
8	! Former revisions:
9	! -----------------
10	! $Id: init_particles.f90 829 2012-02-21 12:24:53Z maronga $
11	!
12	! 828 2012-02-21 12:00:36Z raasch
13	! call of init_kernels, particle feature color renamed class
14	!
15	! 824 2012-02-17 09:09:57Z raasch
16	! particle attributes speed_x\|y\|z_sgs renamed rvar1\|2\|3,
17	! array particles implemented as pointer
18	!
19	! 667 2010-12-23 12:06:00Z suehring/gryschka
20	! nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng for allocation
21	! of arrays.
22	!
23	! 622 2010-12-10 08:08:13Z raasch
24	! optional barriers included in order to speed up collective operations
25	!
26	! 336 2009-06-10 11:19:35Z raasch
27	! Maximum number of tails is calculated from maximum number of particles and
28	! skip_particles_for_tail,
29	! output of messages replaced by message handling routine
30	! Bugfix: arrays for tails are allocated with a minimum size of 10 tails if
31	! there is no tail initially
32	!
33	! 150 2008-02-29 08:19:58Z raasch
34	! Setting offset_ocean_* needed for calculating vertical indices within ocean
35	! runs
36	!
37	! 117 2007-10-11 03:27:59Z raasch
38	! Sorting of particles only in case of cloud droplets
39	!
40	! 106 2007-08-16 14:30:26Z raasch
41	! variable iran replaced by iran_part
42	!
43	! 82 2007-04-16 15:40:52Z raasch
44	! Preprocessor directives for old systems removed
45	!
46	! 70 2007-03-18 23:46:30Z raasch
47	! displacements for mpi_particle_type changed, age_m initialized,
48	! particles-package is now part of the default code
49	!
50	! 16 2007-02-15 13:16:47Z raasch
51	! Bugfix: MPI_REAL in MPI_ALLREDUCE replaced by MPI_INTEGER
52	!
53	! r4 \| raasch \| 2007-02-13 12:33:16 +0100 (Tue, 13 Feb 2007)
54	! RCS Log replace by Id keyword, revision history cleaned up
55	!
56	! Revision 1.24 2007/02/11 13:00:17 raasch
57	! Bugfix: allocation of tail_mask and new_tail_id in case of restart-runs
58	! Bugfix: __ was missing in a cpp-directive
59	!
60	! Revision 1.1 1999/11/25 16:22:38 raasch
61	! Initial revision
62	!
63	!
64	! Description:
65	! ------------
66	! This routine initializes a set of particles and their attributes (position,
67	! radius, ..). Advection of these particles is carried out by advec_particles,
68	! plotting is done in data_output_dvrp.
69	!------------------------------------------------------------------------------!
70
71	USE arrays_3d
72	USE cloud_parameters
73	USE control_parameters
74	USE dvrp_variables
75	USE grid_variables
76	USE indices
77	USE lpm_collision_kernels_mod
78	USE particle_attributes
79	USE pegrid
80	USE random_function_mod
81
82
83	IMPLICIT NONE
84
85	CHARACTER (LEN=10) :: particle_binary_version, version_on_file
86
87	INTEGER :: i, j, n, nn
88	#if defined( __parallel )
89	INTEGER, DIMENSION(3) :: blocklengths, displacements, types
90	#endif
91	LOGICAL :: uniform_particles_l
92	REAL :: factor, pos_x, pos_y, pos_z, value
93
94
95	#if defined( __parallel )
96	!
97	!-- Define MPI derived datatype for FORTRAN datatype particle_type (see module
98	!-- particle_attributes). Integer length is 4 byte, Real is 8 byte
99	blocklengths(1) = 19; blocklengths(2) = 4; blocklengths(3) = 1
100	displacements(1) = 0; displacements(2) = 152; displacements(3) = 168
101
102	types(1) = MPI_REAL
103	types(2) = MPI_INTEGER
104	types(3) = MPI_UB
105	CALL MPI_TYPE_STRUCT( 3, blocklengths, displacements, types, &
106	mpi_particle_type, ierr )
107	CALL MPI_TYPE_COMMIT( mpi_particle_type, ierr )
108	#endif
109
110	!
111	!-- In case of oceans runs, the vertical index calculations need an offset,
112	!-- because otherwise the k indices will become negative
113	IF ( ocean ) THEN
114	offset_ocean_nzt = nzt
115	offset_ocean_nzt_m1 = nzt - 1
116	ENDIF
117
118
119	!
120	!-- Check the number of particle groups.
121	IF ( number_of_particle_groups > max_number_of_particle_groups ) THEN
122	WRITE( message_string, * ) 'max_number_of_particle_groups =', &
123	max_number_of_particle_groups , &
124	'&number_of_particle_groups reset to ', &
125	max_number_of_particle_groups
126	CALL message( 'init_particles', 'PA0213', 0, 1, 0, 6, 0 )
127	number_of_particle_groups = max_number_of_particle_groups
128	ENDIF
129
130	!
131	!-- Set default start positions, if necessary
132	IF ( psl(1) == 9999999.9 ) psl(1) = -0.5 * dx
133	IF ( psr(1) == 9999999.9 ) psr(1) = ( nx + 0.5 ) * dx
134	IF ( pss(1) == 9999999.9 ) pss(1) = -0.5 * dy
135	IF ( psn(1) == 9999999.9 ) psn(1) = ( ny + 0.5 ) * dy
136	IF ( psb(1) == 9999999.9 ) psb(1) = zu(nz/2)
137	IF ( pst(1) == 9999999.9 ) pst(1) = psb(1)
138
139	IF ( pdx(1) == 9999999.9 .OR. pdx(1) == 0.0 ) pdx(1) = dx
140	IF ( pdy(1) == 9999999.9 .OR. pdy(1) == 0.0 ) pdy(1) = dy
141	IF ( pdz(1) == 9999999.9 .OR. pdz(1) == 0.0 ) pdz(1) = zu(2) - zu(1)
142
143	DO j = 2, number_of_particle_groups
144	IF ( psl(j) == 9999999.9 ) psl(j) = psl(j-1)
145	IF ( psr(j) == 9999999.9 ) psr(j) = psr(j-1)
146	IF ( pss(j) == 9999999.9 ) pss(j) = pss(j-1)
147	IF ( psn(j) == 9999999.9 ) psn(j) = psn(j-1)
148	IF ( psb(j) == 9999999.9 ) psb(j) = psb(j-1)
149	IF ( pst(j) == 9999999.9 ) pst(j) = pst(j-1)
150	IF ( pdx(j) == 9999999.9 .OR. pdx(j) == 0.0 ) pdx(j) = pdx(j-1)
151	IF ( pdy(j) == 9999999.9 .OR. pdy(j) == 0.0 ) pdy(j) = pdy(j-1)
152	IF ( pdz(j) == 9999999.9 .OR. pdz(j) == 0.0 ) pdz(j) = pdz(j-1)
153	ENDDO
154
155	!
156	!-- Initialize collision kernels
157	IF ( collision_kernel /= 'none' ) CALL init_kernels
158
159	!
160	!-- For the first model run of a possible job chain initialize the
161	!-- particles, otherwise read the particle data from file.
162	IF ( TRIM( initializing_actions ) == 'read_restart_data' &
163	.AND. read_particles_from_restartfile ) THEN
164
165	!
166	!-- Read particle data from previous model run.
167	!-- First open the input unit.
168	IF ( myid_char == '' ) THEN
169	OPEN ( 90, FILE='PARTICLE_RESTART_DATA_IN'//myid_char, &
170	FORM='UNFORMATTED' )
171	ELSE
172	OPEN ( 90, FILE='PARTICLE_RESTART_DATA_IN/'//myid_char, &
173	FORM='UNFORMATTED' )
174	ENDIF
175
176	!
177	!-- First compare the version numbers
178	READ ( 90 ) version_on_file
179	particle_binary_version = '3.0'
180	IF ( TRIM( version_on_file ) /= TRIM( particle_binary_version ) ) THEN
181	message_string = 'version mismatch concerning data from prior ' // &
182	'run &version on file = "' // &
183	TRIM( version_on_file ) // &
184	'&version in program = "' // &
185	TRIM( particle_binary_version ) // '"'
186	CALL message( 'init_particles', 'PA0214', 1, 2, 0, 6, 0 )
187	ENDIF
188
189	!
190	!-- Read some particle parameters and the size of the particle arrays,
191	!-- allocate them and read their contents.
192	READ ( 90 ) bc_par_b, bc_par_lr, bc_par_ns, bc_par_t, &
193	maximum_number_of_particles, maximum_number_of_tailpoints, &
194	maximum_number_of_tails, number_of_initial_particles, &
195	number_of_particles, number_of_particle_groups, &
196	number_of_tails, particle_groups, time_prel, &
197	time_write_particle_data, uniform_particles
198
199	IF ( number_of_initial_particles /= 0 ) THEN
200	ALLOCATE( initial_particles(1:number_of_initial_particles) )
201	READ ( 90 ) initial_particles
202	ENDIF
203
204	ALLOCATE( prt_count(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
205	prt_start_index(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
206	particle_mask(maximum_number_of_particles), &
207	part_1(maximum_number_of_particles), &
208	part_2(maximum_number_of_particles) )
209
210	part_1 = particle_type( 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, &
211	0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, &
212	0.0, 0, 0, 0, 0 )
213
214	part_2 = particle_type( 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, &
215	0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, &
216	0.0, 0, 0, 0, 0 )
217
218	sort_count = 0
219
220	particles => part_1
221
222	READ ( 90 ) prt_count, prt_start_index
223	READ ( 90 ) particles
224
225	IF ( use_particle_tails ) THEN
226	ALLOCATE( particle_tail_coordinates(maximum_number_of_tailpoints,5, &
227	maximum_number_of_tails), &
228	new_tail_id(maximum_number_of_tails), &
229	tail_mask(maximum_number_of_tails) )
230	READ ( 90 ) particle_tail_coordinates
231	ENDIF
232
233	CLOSE ( 90 )
234
235	ELSE
236
237	!
238	!-- Allocate particle arrays and set attributes of the initial set of
239	!-- particles, which can be also periodically released at later times.
240	!-- Also allocate array for particle tail coordinates, if needed.
241	ALLOCATE( prt_count(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
242	prt_start_index(nzb:nzt+1,nysg:nyng,nxlg:nxrg), &
243	particle_mask(maximum_number_of_particles), &
244	part_1(maximum_number_of_particles), &
245	part_2(maximum_number_of_particles) )
246
247	particles => part_1
248
249	sort_count = 0
250
251	!
252	!-- Initialize all particles with dummy values (otherwise errors may
253	!-- occur within restart runs). The reason for this is still not clear
254	!-- and may be presumably caused by errors in the respective user-interface.
255	particles = particle_type( 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, &
256	0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, &
257	0.0, 0, 0, 0, 0 )
258	particle_groups = particle_groups_type( 0.0, 0.0, 0.0, 0.0 )
259
260	!
261	!-- Set the default particle size used for dvrp plots
262	IF ( dvrp_psize == 9999999.9 ) dvrp_psize = 0.2 * dx
263
264	!
265	!-- Set values for the density ratio and radius for all particle
266	!-- groups, if necessary
267	IF ( density_ratio(1) == 9999999.9 ) density_ratio(1) = 0.0
268	IF ( radius(1) == 9999999.9 ) radius(1) = 0.0
269	DO i = 2, number_of_particle_groups
270	IF ( density_ratio(i) == 9999999.9 ) THEN
271	density_ratio(i) = density_ratio(i-1)
272	ENDIF
273	IF ( radius(i) == 9999999.9 ) radius(i) = radius(i-1)
274	ENDDO
275
276	DO i = 1, number_of_particle_groups
277	IF ( density_ratio(i) /= 0.0 .AND. radius(i) == 0 ) THEN
278	WRITE( message_string, * ) 'particle group #', i, 'has a', &
279	'density ratio /= 0 but radius = 0'
280	CALL message( 'init_particles', 'PA0215', 1, 2, 0, 6, 0 )
281	ENDIF
282	particle_groups(i)%density_ratio = density_ratio(i)
283	particle_groups(i)%radius = radius(i)
284	ENDDO
285
286	!
287	!-- Calculate particle positions and store particle attributes, if
288	!-- particle is situated on this PE
289	n = 0
290
291	DO i = 1, number_of_particle_groups
292
293	pos_z = psb(i)
294
295	DO WHILE ( pos_z <= pst(i) )
296
297	pos_y = pss(i)
298
299	DO WHILE ( pos_y <= psn(i) )
300
301	IF ( pos_y >= ( nys - 0.5 ) * dy .AND. &
302	pos_y < ( nyn + 0.5 ) * dy ) THEN
303
304	pos_x = psl(i)
305
306	DO WHILE ( pos_x <= psr(i) )
307
308	IF ( pos_x >= ( nxl - 0.5 ) * dx .AND. &
309	pos_x < ( nxr + 0.5 ) * dx ) THEN
310
311	DO j = 1, particles_per_point
312
313	n = n + 1
314	IF ( n > maximum_number_of_particles ) THEN
315	WRITE( message_string, * ) 'number of initial', &
316	'particles (', n, ') exceeds', &
317	'&maximum_number_of_particles (', &
318	maximum_number_of_particles, ') on PE ', &
319	myid
320	CALL message( 'init_particles', 'PA0216', &
321	2, 2, -1, 6, 1 )
322	ENDIF
323	particles(n)%x = pos_x
324	particles(n)%y = pos_y
325	particles(n)%z = pos_z
326	particles(n)%age = 0.0
327	particles(n)%age_m = 0.0
328	particles(n)%dt_sum = 0.0
329	particles(n)%dvrp_psize = dvrp_psize
330	particles(n)%e_m = 0.0
331	IF ( curvature_solution_effects ) THEN
332	!
333	!-- Initial values (internal timesteps, derivative)
334	!-- for Rosenbrock method
335	particles(n)%rvar1 = 1.0E-12
336	particles(n)%rvar2 = 1.0E-3
337	particles(n)%rvar3 = -9999999.9
338	ELSE
339	!
340	!-- Initial values for SGS velocities
341	particles(n)%rvar1 = 0.0
342	particles(n)%rvar2 = 0.0
343	particles(n)%rvar3 = 0.0
344	ENDIF
345	particles(n)%speed_x = 0.0
346	particles(n)%speed_y = 0.0
347	particles(n)%speed_z = 0.0
348	particles(n)%origin_x = pos_x
349	particles(n)%origin_y = pos_y
350	particles(n)%origin_z = pos_z
351	particles(n)%radius = particle_groups(i)%radius
352	particles(n)%weight_factor =initial_weighting_factor
353	particles(n)%class = 1
354	particles(n)%group = i
355	particles(n)%tailpoints = 0
356	IF ( use_particle_tails .AND. &
357	MOD( n, skip_particles_for_tail ) == 0 ) THEN
358	number_of_tails = number_of_tails + 1
359	!
360	!-- This is a temporary provisional setting (see
361	!-- further below!)
362	particles(n)%tail_id = number_of_tails
363	ELSE
364	particles(n)%tail_id = 0
365	ENDIF
366
367	ENDDO
368
369	ENDIF
370
371	pos_x = pos_x + pdx(i)
372
373	ENDDO
374
375	ENDIF
376
377	pos_y = pos_y + pdy(i)
378
379	ENDDO
380
381	pos_z = pos_z + pdz(i)
382
383	ENDDO
384
385	ENDDO
386
387	number_of_initial_particles = n
388	number_of_particles = n
389
390	!
391	!-- Calculate the number of particles and tails of the total domain
392	#if defined( __parallel )
393	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
394	CALL MPI_ALLREDUCE( number_of_particles, total_number_of_particles, 1, &
395	MPI_INTEGER, MPI_SUM, comm2d, ierr )
396	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
397	CALL MPI_ALLREDUCE( number_of_tails, total_number_of_tails, 1, &
398	MPI_INTEGER, MPI_SUM, comm2d, ierr )
399	#else
400	total_number_of_particles = number_of_particles
401	total_number_of_tails = number_of_tails
402	#endif
403
404	!
405	!-- Set a seed value for the random number generator to be exclusively
406	!-- used for the particle code. The generated random numbers should be
407	!-- different on the different PEs.
408	iran_part = iran_part + myid
409
410	!
411	!-- User modification of initial particles
412	CALL user_init_particles
413
414	!
415	!-- Store the initial set of particles for release at later times
416	IF ( number_of_initial_particles /= 0 ) THEN
417	ALLOCATE( initial_particles(1:number_of_initial_particles) )
418	initial_particles(1:number_of_initial_particles) = &
419	particles(1:number_of_initial_particles)
420	ENDIF
421
422	!
423	!-- Add random fluctuation to particle positions
424	IF ( random_start_position ) THEN
425
426	DO n = 1, number_of_initial_particles
427	IF ( psl(particles(n)%group) /= psr(particles(n)%group) ) THEN
428	particles(n)%x = particles(n)%x + &
429	( random_function( iran_part ) - 0.5 ) * &
430	pdx(particles(n)%group)
431	IF ( particles(n)%x <= ( nxl - 0.5 ) * dx ) THEN
432	particles(n)%x = ( nxl - 0.4999999999 ) * dx
433	ELSEIF ( particles(n)%x >= ( nxr + 0.5 ) * dx ) THEN
434	particles(n)%x = ( nxr + 0.4999999999 ) * dx
435	ENDIF
436	ENDIF
437	IF ( pss(particles(n)%group) /= psn(particles(n)%group) ) THEN
438	particles(n)%y = particles(n)%y + &
439	( random_function( iran_part ) - 0.5 ) * &
440	pdy(particles(n)%group)
441	IF ( particles(n)%y <= ( nys - 0.5 ) * dy ) THEN
442	particles(n)%y = ( nys - 0.4999999999 ) * dy
443	ELSEIF ( particles(n)%y >= ( nyn + 0.5 ) * dy ) THEN
444	particles(n)%y = ( nyn + 0.4999999999 ) * dy
445	ENDIF
446	ENDIF
447	IF ( psb(particles(n)%group) /= pst(particles(n)%group) ) THEN
448	particles(n)%z = particles(n)%z + &
449	( random_function( iran_part ) - 0.5 ) * &
450	pdz(particles(n)%group)
451	ENDIF
452	ENDDO
453	ENDIF
454
455	!
456	!-- Sort particles in the sequence the gridboxes are stored in the memory.
457	!-- Only required if cloud droplets are used.
458	IF ( cloud_droplets ) CALL sort_particles
459
460	!
461	!-- Open file for statistical informations about particle conditions
462	IF ( write_particle_statistics ) THEN
463	CALL check_open( 80 )
464	WRITE ( 80, 8000 ) current_timestep_number, simulated_time, &
465	number_of_initial_particles, &
466	maximum_number_of_particles
467	CALL close_file( 80 )
468	ENDIF
469
470	!
471	!-- Check if particles are really uniform in color and radius (dvrp_size)
472	!-- (uniform_particles is preset TRUE)
473	IF ( uniform_particles ) THEN
474	IF ( number_of_initial_particles == 0 ) THEN
475	uniform_particles_l = .TRUE.
476	ELSE
477	n = number_of_initial_particles
478	IF ( MINVAL( particles(1:n)%dvrp_psize ) == &
479	MAXVAL( particles(1:n)%dvrp_psize ) .AND. &
480	MINVAL( particles(1:n)%class ) == &
481	MAXVAL( particles(1:n)%class ) ) THEN
482	uniform_particles_l = .TRUE.
483	ELSE
484	uniform_particles_l = .FALSE.
485	ENDIF
486	ENDIF
487
488	#if defined( __parallel )
489	IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr )
490	CALL MPI_ALLREDUCE( uniform_particles_l, uniform_particles, 1, &
491	MPI_LOGICAL, MPI_LAND, comm2d, ierr )
492	#else
493	uniform_particles = uniform_particles_l
494	#endif
495
496	ENDIF
497
498	!
499	!-- Particles will probably become none-uniform, if their size and color
500	!-- will be determined by flow variables
501	IF ( particle_color /= 'none' .OR. particle_dvrpsize /= 'none' ) THEN
502	uniform_particles = .FALSE.
503	ENDIF
504
505	!
506	!-- Set the beginning of the particle tails and their age
507	IF ( use_particle_tails ) THEN
508	!
509	!-- Choose the maximum number of tails with respect to the maximum number
510	!-- of particles and skip_particles_for_tail
511	maximum_number_of_tails = maximum_number_of_particles / &
512	skip_particles_for_tail
513
514	!
515	!-- Create a minimum number of tails in case that there is no tail
516	!-- initially (otherwise, index errors will occur when adressing the
517	!-- arrays below)
518	IF ( maximum_number_of_tails == 0 ) maximum_number_of_tails = 10
519
520	ALLOCATE( particle_tail_coordinates(maximum_number_of_tailpoints,5, &
521	maximum_number_of_tails), &
522	new_tail_id(maximum_number_of_tails), &
523	tail_mask(maximum_number_of_tails) )
524
525	particle_tail_coordinates = 0.0
526	minimum_tailpoint_distance = minimum_tailpoint_distance**2
527	number_of_initial_tails = number_of_tails
528
529	nn = 0
530	DO n = 1, number_of_particles
531	!
532	!-- Only for those particles marked above with a provisional tail_id
533	!-- tails will be created. Particles now get their final tail_id.
534	IF ( particles(n)%tail_id /= 0 ) THEN
535
536	nn = nn + 1
537	particles(n)%tail_id = nn
538
539	particle_tail_coordinates(1,1,nn) = particles(n)%x
540	particle_tail_coordinates(1,2,nn) = particles(n)%y
541	particle_tail_coordinates(1,3,nn) = particles(n)%z
542	particle_tail_coordinates(1,4,nn) = particles(n)%class
543	particles(n)%tailpoints = 1
544	IF ( minimum_tailpoint_distance /= 0.0 ) THEN
545	particle_tail_coordinates(2,1,nn) = particles(n)%x
546	particle_tail_coordinates(2,2,nn) = particles(n)%y
547	particle_tail_coordinates(2,3,nn) = particles(n)%z
548	particle_tail_coordinates(2,4,nn) = particles(n)%class
549	particle_tail_coordinates(1:2,5,nn) = 0.0
550	particles(n)%tailpoints = 2
551	ENDIF
552
553	ENDIF
554	ENDDO
555	ENDIF
556
557	!
558	!-- Plot initial positions of particles (only if particle advection is
559	!-- switched on from the beginning of the simulation (t=0))
560	IF ( particle_advection_start == 0.0 ) CALL data_output_dvrp
561
562	ENDIF
563
564	!
565	!-- Check boundary condition and set internal variables
566	SELECT CASE ( bc_par_b )
567
568	CASE ( 'absorb' )
569	ibc_par_b = 1
570
571	CASE ( 'reflect' )
572	ibc_par_b = 2
573
574	CASE DEFAULT
575	WRITE( message_string, * ) 'unknown boundary condition ', &
576	'bc_par_b = "', TRIM( bc_par_b ), '"'
577	CALL message( 'init_particles', 'PA0217', 1, 2, 0, 6, 0 )
578
579	END SELECT
580	SELECT CASE ( bc_par_t )
581
582	CASE ( 'absorb' )
583	ibc_par_t = 1
584
585	CASE ( 'reflect' )
586	ibc_par_t = 2
587
588	CASE DEFAULT
589	WRITE( message_string, * ) 'unknown boundary condition ', &
590	'bc_par_t = "', TRIM( bc_par_t ), '"'
591	CALL message( 'init_particles', 'PA0218', 1, 2, 0, 6, 0 )
592
593	END SELECT
594	SELECT CASE ( bc_par_lr )
595
596	CASE ( 'cyclic' )
597	ibc_par_lr = 0
598
599	CASE ( 'absorb' )
600	ibc_par_lr = 1
601
602	CASE ( 'reflect' )
603	ibc_par_lr = 2
604
605	CASE DEFAULT
606	WRITE( message_string, * ) 'unknown boundary condition ', &
607	'bc_par_lr = "', TRIM( bc_par_lr ), '"'
608	CALL message( 'init_particles', 'PA0219', 1, 2, 0, 6, 0 )
609
610	END SELECT
611	SELECT CASE ( bc_par_ns )
612
613	CASE ( 'cyclic' )
614	ibc_par_ns = 0
615
616	CASE ( 'absorb' )
617	ibc_par_ns = 1
618
619	CASE ( 'reflect' )
620	ibc_par_ns = 2
621
622	CASE DEFAULT
623	WRITE( message_string, * ) 'unknown boundary condition ', &
624	'bc_par_ns = "', TRIM( bc_par_ns ), '"'
625	CALL message( 'init_particles', 'PA0220', 1, 2, 0, 6, 0 )
626
627	END SELECT
628	!
629	!-- Formats
630	8000 FORMAT (I6,1X,F7.2,4X,I6,71X,I6)
631
632	END SUBROUTINE init_particles

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source: palm/trunk/SOURCE/init_particles.f90 @ 833

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