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.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=rk), | intent(in) | :: | cfl | CFL number |
||
| 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 |
||
| type(atl_Equations_type), | intent(in) | :: | equation | |||
| integer, | intent(in) | :: | nPoly | The number of polynomials per spatial direction The equation system to be used in the simulation. |
| Type | Visibility | Attributes | Name | Initial | |||
|---|---|---|---|---|---|---|---|
| integer, | private, | parameter | :: | ik | = | selected_int_kind(16) | |
| integer(kind=ik), | private | :: | npow |