calc_timestep_flow_cube Subroutine

private subroutine calc_timestep_flow_cube(cfl, length, dt, timestep, nPoly)

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.

Arguments

Type IntentOptional Attributes Name
real(kind=rk), intent(in) :: cfl

CFL number

real(kind=rk), intent(in) :: length

Reference length of all elements

real(kind=rk), intent(out) :: dt

Resulting time step width

type(atl_timestep_type), intent(in) :: timestep

Info about the timestep type

integer, intent(in) :: nPoly

The number of polynomials per spatial direction