Calculate the timestep for a whole part of a cubic mesh by a CFL condition.
This routine takes the primitive variables of the equation system and calculates the timestep size for the explicit time integration. The calculation is based on the cfl condition and the next restart timepoints.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=rk), | intent(in) | :: | length |
The length of the cubes you are calculating the cfl condition for. |
||
| real(kind=rk), | intent(in) | :: | cfl |
The CFL factor to apply (for the convective part of the equation). |
||
| real(kind=rk), | intent(in) | :: | cfl_visc |
The CFL factor to apply (for the viscous part of the equation). |
||
| type(atl_Equations_type), | intent(inout) | :: | equation |
The equation system to be used in the simulation. |
||
| real(kind=rk), | intent(out) | :: | dt |
Resulting timestep. |
||
| type(atl_timestep_type), | intent(in) | :: | timestep |
Timestep information |
||
| type(atl_scheme_type), | intent(in) | :: | scheme |
Info about the scheme. |
||
| type(atl_material_type), | intent(in) | :: | material |
Material information for all elements on the current level |
||
| type(tem_time_type), | intent(in) | :: | localtime |
Local time, required for update of temporal background in linear Euler |