ERF
Energy Research and Forecasting: An Atmospheric Modeling Code
surface_temp_wave_coupled Struct Reference

#include <ERF_MOSTStress.H>

Collaboration diagram for surface_temp_wave_coupled:

Public Member Functions

 surface_temp_wave_coupled (amrex::Real zref, amrex::Real Tflux, amrex::Real Qvflux, bool cons_qflux)
 
AMREX_GPU_DEVICE AMREX_FORCE_INLINE void iterate_flux (const int &i, const int &j, const int &k, const int &max_iters, const amrex::Array4< amrex::Real > &z0_arr, const amrex::Array4< const amrex::Real > &umm_arr, const amrex::Array4< const amrex::Real > &tm_arr, const amrex::Array4< const amrex::Real > &tvm_arr, const amrex::Array4< const amrex::Real > &qvm_arr, const amrex::Array4< amrex::Real > &u_star_arr, const amrex::Array4< amrex::Real > &w_star_arr, const amrex::Array4< amrex::Real > &t_star_arr, const amrex::Array4< amrex::Real > &q_star_arr, const amrex::Array4< amrex::Real > &t_surf_arr, const amrex::Array4< amrex::Real > &q_surf_arr, const amrex::Array4< amrex::Real > &olen_arr, const amrex::Array4< amrex::Real > &pblh_arr, const amrex::Array4< amrex::Real > &Hwave_arr, const amrex::Array4< amrex::Real > &Lwave_arr, const amrex::Array4< amrex::Real > &eta_arr) const
 

Private Attributes

most_data mdata
 
bool spec_qflux
 
similarity_funs sfuns
 
const amrex::Real tol = 1.0e-5
 
const amrex::Real eps = 1e-15
 
const amrex::Real z0_eps = 1.0e-6
 
const amrex::Real z0_max = 0.1
 
const amrex::Real WSMIN = 0.1
 

Detailed Description

Surface temperature with wave-coupled roughness

Constructor & Destructor Documentation

◆ surface_temp_wave_coupled()

surface_temp_wave_coupled::surface_temp_wave_coupled ( amrex::Real  zref,
amrex::Real  Tflux,
amrex::Real  Qvflux,
bool  cons_qflux 
)
inline
1644  {
1645  mdata.zref = zref;
1646  mdata.surf_temp_flux = Tflux;
1647  mdata.surf_moist_flux = Qvflux;
1648  spec_qflux = cons_qflux;
1649  }
amrex::Real surf_moist_flux
Moisture flux.
Definition: ERF_MOSTStress.H:20
amrex::Real zref
Reference height (m)
Definition: ERF_MOSTStress.H:15
amrex::Real surf_temp_flux
Heat flux.
Definition: ERF_MOSTStress.H:19
most_data mdata
Definition: ERF_MOSTStress.H:1751
bool spec_qflux
Definition: ERF_MOSTStress.H:1752

Member Function Documentation

◆ iterate_flux()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE void surface_temp_wave_coupled::iterate_flux ( const int &  i,
const int &  j,
const int &  k,
const int &  max_iters,
const amrex::Array4< amrex::Real > &  z0_arr,
const amrex::Array4< const amrex::Real > &  umm_arr,
const amrex::Array4< const amrex::Real > &  tm_arr,
const amrex::Array4< const amrex::Real > &  tvm_arr,
const amrex::Array4< const amrex::Real > &  qvm_arr,
const amrex::Array4< amrex::Real > &  u_star_arr,
const amrex::Array4< amrex::Real > &  w_star_arr,
const amrex::Array4< amrex::Real > &  t_star_arr,
const amrex::Array4< amrex::Real > &  q_star_arr,
const amrex::Array4< amrex::Real > &  t_surf_arr,
const amrex::Array4< amrex::Real > &  q_surf_arr,
const amrex::Array4< amrex::Real > &  olen_arr,
const amrex::Array4< amrex::Real > &  pblh_arr,
const amrex::Array4< amrex::Real > &  Hwave_arr,
const amrex::Array4< amrex::Real > &  Lwave_arr,
const amrex::Array4< amrex::Real > &  eta_arr 
) const
inline
1674  {
1675  int iter = 0;
1676  amrex::Real ustar = 0.0;
1677  amrex::Real wstar = 0.0;
1678  amrex::Real z0 = 0.0;
1679  amrex::Real tflux = 0.0;
1680  amrex::Real qflux = 0.0;
1681  amrex::Real zeta = 0.0;
1682  amrex::Real psi_m = 0.0;
1683  amrex::Real psi_h = 0.0;
1684  amrex::Real Olen = 0.0;
1685  amrex::Real Oleno = 0.0;
1686  int ie, je;
1687  ie = i < lbound(eta_arr).x ? lbound(eta_arr).x : i;
1688  je = j < lbound(eta_arr).y ? lbound(eta_arr).y : j;
1689  ie = ie > ubound(eta_arr).x ? ubound(eta_arr).x : ie;
1690  je = je > ubound(eta_arr).y ? ubound(eta_arr).y : je;
1691  amrex::Real umm = std::max(umm_arr(i,j,k), WSMIN);
1692  if (u_star_arr(i,j,k) == 1.E34) {
1693  u_star_arr(i,j,k) = mdata.kappa * umm / std::log(mdata.zref / z0_arr(i,j,k));
1694  } else {
1695  Olen = olen_arr(i,j,k);
1696  Oleno = Olen;
1697  zeta = mdata.zref / Olen;
1698  psi_m = sfuns.calc_psi_m(zeta);
1699  psi_h = sfuns.calc_psi_h(zeta);
1700  }
1701  do {
1702  ustar = u_star_arr(i,j,k);
1703  z0 = std::min( std::max(1200.0 * Hwave_arr(i,j,k) * std::pow( Hwave_arr(i,j,k)/(Lwave_arr(i,j,k)+eps), 4.5 )
1704  + 0.11 * eta_arr(ie,je,k,EddyDiff::Mom_v) / ustar, z0_eps), z0_max );
1705  tflux = -(tm_arr(i,j,k) - t_surf_arr(i,j,k)) * ustar * mdata.kappa /
1706  (std::log(mdata.zref / z0) - psi_h); // <w'T'>
1707  tflux *= (1 + 0.61*qvm_arr(i,j,k));
1708  qflux = (spec_qflux) ? mdata.surf_moist_flux :
1709  -(qvm_arr(i,j,k) - q_surf_arr(i,j,k)) * ustar * mdata.kappa /
1710  (std::log(mdata.zref / z0_arr(i,j,k)) - psi_h); // <w'Qv'>
1711  tflux += 0.61*tm_arr(i,j,k) * qflux; // ~= <w'Tv'>
1712  if (w_star_arr) {
1713  // update w* and Umagmean
1714  w_star_arr(i,j,k) = calc_wstar(tflux, pblh_arr(i,j,k), tvm_arr(i,j,k));
1715  wstar = mdata.Bjr_beta * w_star_arr(i,j,k);
1716  umm = std::sqrt(umm_arr(i,j,k)*umm_arr(i,j,k) + wstar*wstar);
1717  umm = std::max(umm, WSMIN);
1718  }
1719  Olen = -ustar * ustar * ustar * tvm_arr(i,j,k) / (mdata.kappa * mdata.gravity * tflux);
1720  if ( (((Olen >= 0.0) && (Oleno <= 0.0)) ||
1721  ((Olen <= 0.0) && (Oleno >= 0.0))) &&
1722  std::fabs(Olen) + std::fabs(Oleno) < 1.) {
1723  Olen = 0.5 * (Olen + Oleno);
1724  }
1725  Oleno = Olen;
1726  zeta = mdata.zref / Olen;
1727  psi_m = sfuns.calc_psi_m(zeta);
1728  psi_h = sfuns.calc_psi_h(zeta);
1729  u_star_arr(i,j,k) = mdata.kappa * umm / (std::log(mdata.zref / z0) - psi_m);
1730  ++iter;
1731  } while ((std::abs(u_star_arr(i,j,k) - ustar) > tol) && iter <= max_iters);
1732  AMREX_ALWAYS_ASSERT_WITH_MESSAGE(iter < max_iters,
1733  "Maximum number of MOST iterations reached.");
1734 
1735  // Populate the stored MOST arrays
1736  z0_arr(i,j,k) = z0;
1737  olen_arr(i,j,k) = Olen;
1738  t_star_arr(i,j,k) = mdata.kappa * (tm_arr(i,j,k) - t_surf_arr(i,j,k)) /
1739  (std::log(mdata.zref / z0) - psi_h);
1740  if (spec_qflux) {
1741  q_surf_arr(i,j,k) = mdata.surf_moist_flux * (std::log(mdata.zref / z0_arr(i,j,k)) - psi_h) /
1742  (u_star_arr(i,j,k) * mdata.kappa) + qvm_arr(i,j,k);
1743  q_star_arr(i,j,k) = -mdata.surf_moist_flux / u_star_arr(i,j,k);
1744  } else {
1745  q_star_arr(i,j,k) = mdata.kappa * (qvm_arr(i,j,k) - q_surf_arr(i,j,k)) /
1746  (std::log(mdata.zref / z0_arr(i,j,k)) - psi_h);
1747  }
1748  }
amrex::Real Real
Definition: ERF_ShocInterface.H:16
AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real calc_wstar(const amrex::Real &ust, const amrex::Real &tst, const amrex::Real &qst, const amrex::Real &pblh, const amrex::Real &th, const amrex::Real &thv, const amrex::Real &qv=0.0)
Definition: ERF_Wstar.H:13
@ Mom_v
Definition: ERF_IndexDefines.H:175
amrex::Real kappa
von Karman constant
Definition: ERF_MOSTStress.H:17
amrex::Real gravity
Acceleration due to gravity (m/s^2)
Definition: ERF_MOSTStress.H:18
const amrex::Real Bjr_beta
Definition: ERF_MOSTStress.H:29
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE amrex::Real calc_psi_m(amrex::Real zeta) const
Definition: ERF_MOSTStress.H:87
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE amrex::Real calc_psi_h(amrex::Real zeta) const
Definition: ERF_MOSTStress.H:101
const amrex::Real eps
Definition: ERF_MOSTStress.H:1755
const amrex::Real tol
Definition: ERF_MOSTStress.H:1754
const amrex::Real z0_eps
Definition: ERF_MOSTStress.H:1756
similarity_funs sfuns
Definition: ERF_MOSTStress.H:1753
const amrex::Real z0_max
Definition: ERF_MOSTStress.H:1757
const amrex::Real WSMIN
Definition: ERF_MOSTStress.H:1758
Here is the call graph for this function:

Member Data Documentation

◆ eps

const amrex::Real surface_temp_wave_coupled::eps = 1e-15
private

Referenced by iterate_flux().

◆ mdata

most_data surface_temp_wave_coupled::mdata
private

◆ sfuns

similarity_funs surface_temp_wave_coupled::sfuns
private

Referenced by iterate_flux().

◆ spec_qflux

bool surface_temp_wave_coupled::spec_qflux
private

◆ tol

const amrex::Real surface_temp_wave_coupled::tol = 1.0e-5
private

Referenced by iterate_flux().

◆ WSMIN

const amrex::Real surface_temp_wave_coupled::WSMIN = 0.1
private

Referenced by iterate_flux().

◆ z0_eps

const amrex::Real surface_temp_wave_coupled::z0_eps = 1.0e-6
private

Referenced by iterate_flux().

◆ z0_max

const amrex::Real surface_temp_wave_coupled::z0_max = 0.1
private

Referenced by iterate_flux().


The documentation for this struct was generated from the following file: