206 | | The building size and location can be specified by the parameters building_height, building_length_x, building_length_y, building_wall_left and building_wall_south. |
207 | | |
208 | | 'single_street_canyon' |
209 | | Flow over a single, quasi-2D street canyon of infinite length oriented either in x- or in y-direction. |
210 | | The canyon size, orientation and location can be specified by the parameters canyon_height plus either canyon_width_x and canyon_wall_left or canyon_width_y and canyon_wall_south. |
211 | | |
212 | | |
213 | | 'read_from_file' |
214 | | Flow around arbitrary topography. |
215 | | This mode requires the input file TOPOGRAPHY_DATA. This file contains the arbitrary topography height information in m. These data must exactly match the horizontal grid. |
216 | | |
217 | | Alternatively, the user may add code to the user interface subroutine user_init_grid to allow further topography modes. These require to explicitly set the topography_grid_convention to either 'cell_edge' or 'cell_center'. |
218 | | |
219 | | Non-flat topography modes may assign a kinematic sensible wall_heatflux and a kinematic wall_humidityflux (requires humidity = .T.) or a wall_scalarflux (requires passive_scalar = .T.) at the five topography faces. |
220 | | |
221 | | All non-flat topography modes require the use of momentum_advec = scalar_advec = 'pw-scheme', psolver /= 'sor', alpha_surface = 0.0, galilei_transformation = .F., cloud_physics = .F., cloud_droplets = .F., and prandtl_layer = .T.. |
222 | | |
223 | | Note that an inclined model domain requires the use of topography = 'flat' and a nonzero alpha_surface. |
| 206 | The building size and location can be specified by the parameters [#building_height building_height], [#building_length_x building_length_x], [#building_length_y building_length_y], [#building_wall_left building_wall_left] and [#building_wall_south building_wall_south]. |
| 207 | '' 'single_street_canyon' '' |
| 208 | Flow over a single, quasi-2D street canyon of infinite length oriented either in x- or in y-direction. |
| 209 | The canyon size, orientation and location can be specified by the parameters [#canyon_height canyon_height] plus '''either''' [#canyon_width_x canyon_width_x] and [#canyon_wall_left canyon_wall_left] '''or''' [#canyon_width_y canyon_width_y] and [#canyon_wall_south canyon_wall_south]. |
| 210 | '' 'read_from_file' '' |
| 211 | Flow around arbitrary topography. |
| 212 | This mode requires the input file [#TOPOGRAPHY_DATA TOPOGRAPHY_DATA]. This file contains the arbitrary topography height information in m. These data must exactly match the horizontal grid.\\\\ |
| 213 | Alternatively, the user may add code to the user interface subroutine [#user_init_grid user_init_grid] to allow further topography modes. These require to explicitly set the [#topography_grid_convention topography_grid_convention] to either '' 'cell_edge' '' or '' 'cell_center' ''.\\\\ |
| 214 | Non-flat '''topography''' modes may assign a kinematic sensible [#wall_heatflux wall_heatflux] and a kinematic [#wall_humidityflux wall_humidityflux] (requires [#humidity humidity] = .T.) or a [#wall_scalarflux wall_scalarflux] (requires [#passive_scalar passive_scalar] = .T.) at the five topography faces.\\\\ |
| 215 | All non-flat '''topography''' modes require the use of [#momentum_advec momentum_advec] = [#scalar_advec scalar_advec] = '' 'pw-scheme' '', [#psolver psolver] /= '' 'sor' '', [#alpha_surface alpha_surface] = 0.0, [#galilei_transformation galilei_transformation] = ''.F.'', [#cloud_physics cloud_physics] = ''.F.'', [#cloud_droplets cloud_droplets] = ''.F.'', and [#prandtl_layer prandtl_layer] = ''.T.''.\\\\ |
| 216 | Note that an inclined model domain requires the use of topography = '' 'flat' '' and a nonzero alpha_surface. |