ThickenedFlame Struct Reference

Thickening F, efficiency E and flame sensor Omega of a cell. The flame is thickened by F where Omega = 1 so that it spans n_res cells: diffusivities and conductivity times E F, reaction rates times E / F (laminar speed times E, thickness times F). E is the SGS wrinkling of Charlette, Meneveau & Veynante (Combust. Flame 131, 2002) with beta = 0.5 at the filter width F delta_L. Plain aggregate, captured by value in kernels. More...

#include <tfles.h>

Public Member Functions
logging::Items	summary () const
KOKKOS_INLINE_FUNCTION double	sensor (const double T) const
	Flame sensor: 1 inside the flame (preheat zone included), 0 in fresh and burnt gas.
KOKKOS_INLINE_FUNCTION double	thickening (const double delta, const double omega) const
	Thickening of a cell of filter width delta with sensor omega.
KOKKOS_INLINE_FUNCTION double	wrinkling (const double F, const double u_prime, const double nu) const
	Charlette efficiency (1 + min[F - 1, Gamma u' / s_L])^beta for the SGS velocity u_prime at the filter width F delta_L, with the kinematic viscosity nu (their equations for Gamma, f_u, f_Delta and f_Re with C_k = 1.5, b = 1.4).

Static Public Member Functions
static ThickenedFlame	from_input (const toml::value &table)
	[les.combustion] of an input with one.

Public Attributes
double	delta_L = 0.0
double	s_L = 0.0
double	T_u = 0.0
double	T_b = 0.0
double	n_res = 5.0
double	beta = 0.5
bool	efficiency = true
bool	eddy_viscosity_velocity = false
double	C_u = 28.0

Static Public Attributes
static constexpr double	C_SENSOR = 0.05
static constexpr double	C_K = 1.5

Detailed Description

Thickening F, efficiency E and flame sensor Omega of a cell. The flame is thickened by F where Omega = 1 so that it spans n_res cells: diffusivities and conductivity times E F, reaction rates times E / F (laminar speed times E, thickness times F). E is the SGS wrinkling of Charlette, Meneveau & Veynante (Combust. Flame 131, 2002) with beta = 0.5 at the filter width F delta_L. Plain aggregate, captured by value in kernels.

Member Function Documentation

from_input()

ThickenedFlame ThickenedFlame::from_input ( const toml::value &  table )

static

[les.combustion] of an input with one.

sensor()

KOKKOS_INLINE_FUNCTION double ThickenedFlame::sensor ( const double  T ) const

inline

Flame sensor: 1 inside the flame (preheat zone included), 0 in fresh and burnt gas.

summary()

logging::Items ThickenedFlame::summary

(

)

const

thickening()

KOKKOS_INLINE_FUNCTION double ThickenedFlame::thickening ( const double  delta, const double  omega  ) const

inline

Thickening of a cell of filter width delta with sensor omega.

wrinkling()

KOKKOS_INLINE_FUNCTION double ThickenedFlame::wrinkling ( const double  F, const double  u_prime, const double  nu  ) const

inline

Charlette efficiency (1 + min[F - 1, Gamma u' / s_L])^beta for the SGS velocity u_prime at the filter width F delta_L, with the kinematic viscosity nu (their equations for Gamma, f_u, f_Delta and f_Re with C_k = 1.5, b = 1.4).

Member Data Documentation

beta

double ThickenedFlame::beta = 0.5

C_K

constexpr double ThickenedFlame::C_K = 1.5

staticconstexpr

C_SENSOR

constexpr double ThickenedFlame::C_SENSOR = 0.05

staticconstexpr

C_u

double ThickenedFlame::C_u = 28.0

delta_L

double ThickenedFlame::delta_L = 0.0

eddy_viscosity_velocity

bool ThickenedFlame::eddy_viscosity_velocity = false

efficiency

bool ThickenedFlame::efficiency = true

n_res

double ThickenedFlame::n_res = 5.0

s_L

double ThickenedFlame::s_L = 0.0

T_b

double ThickenedFlame::T_b = 0.0

T_u

double ThickenedFlame::T_u = 0.0

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

• /home/runner/work/mallard/mallard/mallard/src/physics/tfles.h
• /home/runner/work/mallard/mallard/mallard/src/physics/tfles.cpp