Calculate time step based on a given CFL condition for a cube in a flow simulation.
This subroutine calculates the timstep according to the CFL condition. Please notice, that this routine can be applied for flow simulations only.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=rk), | intent(in) | :: | cfl | CFL number |
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| real(kind=rk), | intent(in) | :: | length | Reference length of all elements |
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| real(kind=rk), | intent(out) | :: | dt | Resulting time step width |
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| type(atl_timestep_type), | intent(in) | :: | timestep | Info about the timestep type |
||
| integer, | intent(in) | :: | nPoly | The number of polynomials per spatial direction |
| Type | Visibility | Attributes | Name | Initial | |||
|---|---|---|---|---|---|---|---|
| real(kind=rk), | private | :: | max_velocity |