Changes between Version 6 and Version 7 of doc/app/examples/turbinf

Timestamp:

Sep 16, 2010 12:36:07 PM (14 years ago)

Author:

witha

Comment:

--

doc/app/examples/turbinf

@@ -8 +8 @@
 
   * A precursor run with cyclic horizontal boundary conditions has to be carried out in order to create a (quasi-) stationary state. Since the horizontal average from this precursor run is used as the mean inflow profile for the main run, '''the wall-normal velocity component must point into the domain at every grid point and its magnitude should be large enough in order to guarantee an inflow even if a turbulence signal is added.'''
-  * The main run requires from the precursor run the mean profiles to be used at the inflow. For this, the horizontally and temporally averaged mean profiles as provided with the standard PALM output are used. The user has to set parameters [../../d3par#dt_data_output_pr dt_data_output_pr], [../../d3par#averaging_interval averaging_interval], etc. for the precursor run appropriately, so that an output is done '''at the end''' of the precursor run. The profile information is then contained in the restart (binary) file created at the end of the precursor run and can be used by the main run. '''It is very important that the mean profiles at the end of the precursor run are in a stationary or quasi-stationary state''', because otherwise it may not be justified to use them as constant profiles at the inflow. '''Also, turbulence at the end of the precursor run should be fully developed.''' Otherwise, the main run would need an additional spinup-time at the beginning to get the turbulence to its final stage.
+  * The main run requires from the precursor run the mean profiles to be used at the inflow. For this, the horizontally and temporally averaged mean profiles as provided with the standard PALM output are used. The user has to set parameters [../../d3par#dt_dopr dt_dopr], [../../d3par#averaging_interval averaging_interval], etc. for the precursor run appropriately, so that an output is done '''at the end''' of the precursor run. The profile information is then contained in the restart (binary) file created at the end of the precursor run and can be used by the main run. '''It is very important that the mean profiles at the end of the precursor run are in a stationary or quasi-stationary state''', because otherwise it may not be justified to use them as constant profiles at the inflow. '''Also, turbulence at the end of the precursor run should be fully developed.''' Otherwise, the main run would need an additional spinup-time at the beginning to get the turbulence to its final stage.
   * In order to read the binary data from the precursor run, parameter [../../inipar#initializing_actionsinitializing_actions] = '' 'cyclic_fill' '' has to be set in the main run.   ....     set [../../inipar#bc_lr bc_lr] = '' 'dirichlet/radiation' '' ...   [../../inipar#conserve_volume_flow conserve_volume_flow] = ''.TRUE.'' ? ....
   * The main run allows to use a larger domain along x and y than in the precursor run ...