Changes between Version 185 and Version 186 of doc/app/particle_parameters

Timestamp:

Feb 12, 2020 1:15:19 PM (5 years ago)

Author:

scharf

Comment:

--

doc/app/particle_parameters

@@ -73 +73 @@
 Lateral boundary condition (x-direction) for particle transport. \\
 By default, cyclic boundary conditions are used along x. Alternatively, reflection ('''bc_par_lr''' = '' 'reflect' '') or absorption ('''bc_par_lr''' = '' 'absorb' '') can be set. \\
-This lateral boundary conditions should correspond to the lateral boundary condition used for the flow (see [../inipar#bc_lr bc_lr]).\\\\
+This lateral boundary conditions should correspond to the lateral boundary condition used for the flow (see [../initialization_parameters#bc_lr bc_lr]).\\\\
 In case of nested run the default value of 'bc_par_lr' in the nest domains is not 'cyclic' but 'nested' instead. For the root domain of a nested run the default is 'cyclic' as usually.
 }}}
@@ -90 +90 @@
 Lateral boundary condition (y-direction) for particle transport.\\
 By default, cyclic boundary conditions are used along y. Alternatively, reflection ('''bc_par_ns''' = '' 'reflect' '') or absorption (bc_par_ns = '' 'absorb' '') can be set. \\
-This lateral boundary conditions should correspond to the lateral boundary condition used for the flow (see [../inipar#bc_ns bc_ns]).\\\\
+This lateral boundary conditions should correspond to the lateral boundary condition used for the flow (see [../initialization_parameters#bc_ns bc_ns]).\\\\
 In case of nested run the default value of 'bc_par_ns' in the nest domains is not 'cyclic' but 'nested' instead. For the root domain of a nested run the default is 'cyclic' as usually.
 }}}
@@ -276 +276 @@
 The domain of the particle source, as well as the distance of  released particles within this source, are determined via package parameters [#pst pst], [#psl psl], [#psr psr], [#pss pss], [#psn psn], [#psb psb], [#pdx pdx], [#pdy pdy] and [#pdz pdz]. By default, one particle is released at all points defined by these parameters. The package parameter [#particles_per_point particles_per_point] can be used to start more than one particle per point.\\\\
 Up to 10 different groups of particles can be released at the same time (see [#number_of_particle_groups number_of_particle_groups]) where each group may have a different source. All particles belonging to one group have the same density ratio and the same radius. All other particle features (e.g. location of the source) are identical for all groups of particles.\\\\
-Subgrid scale velocities can (optionally) be included for calculating the particle advection, using the method of Weil et al. (2004, JAS, 61, 2877-2887). This method is switched on by the package parameter [#use_sgs_for_particles use_sgs_for_particles]. This also forces the Euler/upstream method to be used for time advancement of the TKE (see initialization parameter [../inipar#use_upstream_for_tke use_upstream_for_tke]). The minimum time step during the sub-time steps is controlled by package parameter [#dt_min_part dt_min_part]. \\\\
+Subgrid scale velocities can (optionally) be included for calculating the particle advection, using the method of Weil et al. (2004, JAS, 61, 2877-2887). This method is switched on by the package parameter [#use_sgs_for_particles use_sgs_for_particles]. This also forces the Euler/upstream method to be used for time advancement of the TKE (see initialization parameter [../initialization_parameters#use_upstream_for_tke use_upstream_for_tke]). The minimum time step during the sub-time steps is controlled by package parameter [#dt_min_part dt_min_part]. \\\\
 By default, particles are weightless and transported passively with the resolved scale flow. Particles can be given a mass and thus an inertia by assigning the package parameter density_ratio a non-zero value (it defines the ratio of the density of the fluid and the density of the particles). In this case, their radius must also be defined, which affects their flow resistance. \\\\
 Boundary conditions for the particle transport can be defined with package parameters [#bc_par_t bc_par_t], [#bc_par_lr bc_par_lr], [#bc_par_ns bc_par_ns] and [#bc_par_b bc_par_b].\\\\
@@ -325 +325 @@
 {{{#!td
 Factor to define the real number of initial droplets in a grid box.\\
-In case of explicitly simulating cloud droplets (see [../inipar#cloud_droplets cloud_droplets]), the real number of initial droplets in a grid box is equal to the initial number of droplets in this box (defined by the particle source parameters [#pst pst], [#psl psl], [#psr psr], [#pss pss], [#psn psn], [#psb psb], [#pdx pdx], [#pdy pdy] and [#pdz pdz]) times the '''initial_weighting_factor'''.
+In case of explicitly simulating cloud droplets (see [../initialization_parameters#cloud_droplets cloud_droplets]), the real number of initial droplets in a grid box is equal to the initial number of droplets in this box (defined by the particle source parameters [#pst pst], [#psl psl], [#psr psr], [#pss pss], [#psn psn], [#psb psb], [#pdx pdx], [#pdy pdy] and [#pdz pdz]) times the '''initial_weighting_factor'''.
 }}}
 |----------------
@@ -493 +493 @@
 }}}
 {{{#!td style="vertical-align:top"
-10*[../inipar#dx dx]
+10*[../initialization_parameters#dx dx]
 }}}
 {{{#!td
@@ -508 +508 @@
 }}}
 {{{#!td style="vertical-align:top"
-10*[../inipar#dy dy]
+10*[../initialization_parameters#dy dy]
 }}}
 {{{#!td
@@ -534 +534 @@
 }}}
 {{{#!td style="vertical-align:top"
-10*zu([../inipar#nz nz]/2)
+10*zu([../initialization_parameters#nz nz]/2)
 }}}
 {{{#!td
@@ -561 +561 @@
 }}}
 {{{#!td style="vertical-align:top"
-10*([#ny ny]*[../inipar#dy dy])
+10*([#ny ny]*[../initialization_parameters#dy dy])
 }}}
 {{{#!td
@@ -574 +574 @@
 }}}
 {{{#!td style="vertical-align:top"
-10*([#nx nx]*[../inipar#dx dx])
+10*([#nx nx]*[../initialization_parameters#dx dx])
 }}}
 {{{#!td
@@ -600 +600 @@
 }}}
 {{{#!td style="vertical-align:top"
-10*zu([../inipar#nz nz]/2)
+10*zu([../initialization_parameters#nz nz]/2)
 }}}
 {{{#!td
@@ -729 +729 @@
 }}}
 {{{#!td
-Switch on/off the splitting algorithm for cloud droplets (if [../inipar#cloud_droplets cloud_droplets]=.T.). If '''splitting''' is set .TRUE. every time step the splitting algorithm is executed. The algorithm splits particles which fulfill certain criterion's into several super droplets with a reduced number of represented particles of every super droplet (i.e. a reduced weighting factor). The splitting algorithm can be steered by the following parameters: [#max_number_particles_per_gridbox max_number_particles_per_gridbox], [#radius_split radius_split], [#splitting_factor splitting_factor], [#splitting_factor_max splitting_factor_max], [#splitting_function splitting_function], [#splitting_mode splitting_mode] and [#weight_factor_split weight_factor_split]. The mechanism allows an improved representation of the right tail of the drop size distribution with a feasible amount of computational costs.\\
+Switch on/off the splitting algorithm for cloud droplets (if [../initialization_parameters#cloud_droplets cloud_droplets]=.T.). If '''splitting''' is set .TRUE. every time step the splitting algorithm is executed. The algorithm splits particles which fulfill certain criterion's into several super droplets with a reduced number of represented particles of every super droplet (i.e. a reduced weighting factor). The splitting algorithm can be steered by the following parameters: [#max_number_particles_per_gridbox max_number_particles_per_gridbox], [#radius_split radius_split], [#splitting_factor splitting_factor], [#splitting_factor_max splitting_factor_max], [#splitting_function splitting_function], [#splitting_mode splitting_mode] and [#weight_factor_split weight_factor_split]. The mechanism allows an improved representation of the right tail of the drop size distribution with a feasible amount of computational costs.\\
 
 '''Remark:'''\\