TNL::CFD::TurbulenceGenerator< Real, Device, Index > Struct Template Reference

Synthetic turbulence generator based on the code from [1, 2]. Usable for initial as well as inlet boundary conditions. More...

#include <TNL/CFD/TurbulenceGenerator.h>

Collaboration diagram for TNL::CFD::TurbulenceGenerator< Real, Device, Index >:

Public Types
using	Array1D = TNL::Containers::Array< Real, Device, Index >
using	Array3D
using	Array4D
enum class	TimeCorrelationMethod { none , initialNone , initialZero , initialWraparound }
using	txyz_overlaps = TNL::Containers::StaticSizesHolder< Index, 0, 0, 0, 0 >
using	txyz_permutation = std::index_sequence< 0, 3, 2, 1 >
using	Vector = TNL::Containers::Vector< Real, Device, unsigned >
using	xyz_overlaps = TNL::Containers::StaticSizesHolder< Index, 0, 0, 0 >
using	xyz_permutation = std::index_sequence< 2, 1, 0 >

Public Member Functions
	TurbulenceGenerator (unsigned seed=std::random_device()())
template<typename Array1, typename Array2, typename Array3>
void	generateFluctuations (Array1 &u, Array2 &v, Array3 &w, const Array1D &xc, const Array1D &yc, const Array1D &zc, Real minSpaceStep, Real timeStep, Real timeScale, TimeCorrelationMethod timeCorrelation=TimeCorrelationMethod::none)
std::tuple< Array4D, Array4D, Array4D >	getFluctuations (const Array1D &xc, const Array1D &yc, const Array1D &zc, Real minSpaceStep, unsigned ntimes=1, Real timeStep=1, Real timeScale=1, TimeCorrelationMethod timeCorrelation=TimeCorrelationMethod::none)

Public Attributes
Real	kineticEnergy = 1e-2
Real	lengthScale = 0.1 * 0.1
unsigned	nmodes = 3000
std::mt19937	rng
Real	smallestWaveNumberFactor = 5
Real	viscosity = 1.5e-5

Static Public Attributes
static constexpr Real	c_E = 1.452762113

Detailed Description

template<typename Real, typename Device, typename Index>
struct TNL::CFD::TurbulenceGenerator< Real, Device, Index >

Synthetic turbulence generator based on the code from [1, 2]. Usable for initial as well as inlet boundary conditions.

[1] http://www.tfd.chalmers.se/~lada/projects/inlet-boundary-conditions/proright.html [2] Lars Davidson - Fluid mechanics, turbulent flow and turbulence modeling http://www.tfd.chalmers.se/~lada/postscript_files/solids-and-fluids_turbulent-flow_turbulence-modelling.pdf

Member Typedef Documentation

Array3D

template<typename Real, typename Device, typename Index>

using TNL::CFD::TurbulenceGenerator< Real, Device, Index >::Array3D

Initial value:

 TNL::Containers::NDArray< Real,
                                             TNL::Containers::SizesHolder< Index, 0, 0, 0 >,  
                                             xyz_permutation,
                                             Device,
                                             Index,
                                             xyz_overlaps >

Array4D

template<typename Real, typename Device, typename Index>

using TNL::CFD::TurbulenceGenerator< Real, Device, Index >::Array4D

Initial value:

 TNL::Containers::NDArray< Real,
                                             TNL::Containers::SizesHolder< Index, 0, 0, 0, 0 >,  
                                             txyz_permutation,
                                             Device,
                                             Index,
                                             txyz_overlaps >

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

• src/TNL/CFD/TurbulenceGenerator.h