ERF_SlowRhsPreUtils.H File Reference

#include <AMReX_Array4.H>
#include <ERF_Constants.H>

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Functions
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE amrex::Real	slow_rhs_pre_z_pressure_buoyancy (const amrex::Array4< const amrex::Real > &qt_arr, int i, int j, int k, bool use_moisture, amrex::Real gpz, amrex::Real abl_pressure_grad_z, amrex::Real buoyancy)

Function Documentation

slow_rhs_pre_z_pressure_buoyancy()

AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE amrex::Real slow_rhs_pre_z_pressure_buoyancy	(	const amrex::Array4< const amrex::Real > &	qt_arr,
		int	i,
		int	j,
		int	k,
		bool	use_moisture,
		amrex::Real	gpz,
		amrex::Real	abl_pressure_grad_z,
		amrex::Real	buoyancy
	)

Return the pressure and buoyancy contribution to the vertical momentum RHS.

The moisture inertia is face-centered from the two adjacent cell values, matching the z-momentum staggering in erf_slow_rhs_pre. In a dry run the moisture array is not read.

{
    amrex::Real q = use_moisture
        ? myhalf * (qt_arr(i,j,k) + qt_arr(i,j,k-1))
        : zero;
    return (-gpz - abl_pressure_grad_z + buoyancy) / (one + q);
}

Referenced by erf_slow_rhs_pre().

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