OpenLB 1.7
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Public Member Functions | List of all members
olb::PowerLawProfile< T, S > Class Template Reference

PowerLaw profile. More...

#include <wallFunctionBoundaryPostProcessors3D.h>

+ Inheritance diagram for olb::PowerLawProfile< T, S >:
+ Collaboration diagram for olb::PowerLawProfile< T, S >:

Public Member Functions

 PowerLawProfile (T nu, T u2, T y2, T y1, T rho)
 
bool operator() (T output[], const S tau_w[])
 has to be implemented for 'every' derived class
 
- Public Member Functions inherited from olb::AnalyticalF< 1, T, S >
AnalyticalF< D, T, S > & operator- (AnalyticalF< D, T, S > &rhs)
 
AnalyticalF< D, T, S > & operator+ (AnalyticalF< D, T, S > &rhs)
 
AnalyticalF< D, T, S > & operator* (AnalyticalF< D, T, S > &rhs)
 
AnalyticalF< D, T, S > & operator/ (AnalyticalF< D, T, S > &rhs)
 
- Public Member Functions inherited from olb::GenericF< T, S >
virtual ~GenericF ()=default
 
int getSourceDim () const
 read only access to member variable _m
 
int getTargetDim () const
 read only access to member variable _n
 
std::string & getName ()
 read and write access to name
 
std::string const & getName () const
 read only access to name
 
bool operator() (T output[])
 wrapper that call the pure virtual operator() (T output[], const S input[]) from above
 
bool operator() (T output[], S input0)
 
bool operator() (T output[], S input0, S input1)
 
bool operator() (T output[], S input0, S input1, S input2)
 
bool operator() (T output[], S input0, S input1, S input2, S input3)
 

Additional Inherited Members

- Public Types inherited from olb::AnalyticalF< 1, T, S >
using identity_functor_type
 
- Public Types inherited from olb::GenericF< T, S >
using targetType = T
 
using sourceType = S
 
- Public Attributes inherited from olb::GenericF< T, S >
std::shared_ptr< GenericF< T, S > > _ptrCalcC
 memory management, frees resouces (calcClass)
 
- Static Public Attributes inherited from olb::AnalyticalF< 1, T, S >
static constexpr unsigned dim
 
- Protected Member Functions inherited from olb::AnalyticalF< 1, T, S >
 AnalyticalF (int n)
 
- Protected Member Functions inherited from olb::GenericF< T, S >
 GenericF (int targetDim, int sourceDim)
 

Detailed Description

template<typename T, typename S>
class olb::PowerLawProfile< T, S >

PowerLaw profile.

Definition at line 86 of file wallFunctionBoundaryPostProcessors3D.h.

Constructor & Destructor Documentation

◆ PowerLawProfile()

template<typename T , typename S >
olb::PowerLawProfile< T, S >::PowerLawProfile ( T nu,
T u2,
T y2,
T y1,
T rho )

Definition at line 65 of file wallFunctionBoundaryPostProcessors3D.hh.

65 : AnalyticalF<1,T,S>(2), _nu(nu), _u2(u2), _y2(y2), _y1(y1), _rho(rho)
66{
67 this->getName() = "PowerLawProfile";
68}
std::string & getName()
read and write access to name
Definition genericF.hh:51

References olb::GenericF< T, S >::getName().

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Member Function Documentation

◆ operator()()

template<typename T , typename S >
bool olb::PowerLawProfile< T, S >::operator() ( T output[],
const S input[] )
virtual

has to be implemented for 'every' derived class

Implements olb::GenericF< T, S >.

Definition at line 71 of file wallFunctionBoundaryPostProcessors3D.hh.

72{
73 T tau_w = 0.0246384 * _rho * util::pow(_nu, 0.25) * util::pow(_u2, 1.75) / util::pow(_y2, 0.25);
74 T u_tau = util::sqrt(tau_w/_rho);
75 T y_plus = _y1 * u_tau / _nu;
76
77 if (y_plus > 30.0) {
78 output[0] = tau_w;
79 output[1] = u_tau * 8.3 * util::pow(y_plus, 1./7.);
80 }
81 else if (y_plus < 30.0 && y_plus > 5.) {
82 output[0] = tau_w;
83 output[1] = u_tau * (-2.81742 + 4.85723 * util::log(y_plus));
84 }
85 else {
86 output[0] = 2.*_u2 * _rho * _nu / _y2;
87 if (output[0] < 0.) {
88 output[0]*=-1.;
89 }
90 u_tau = util::sqrt(output[0]/_rho);
91 y_plus = _y1 * u_tau / _nu;
92 output[1] = u_tau * y_plus;
93 }
94 return true;
95}
cpu::simd::Pack< T > sqrt(cpu::simd::Pack< T > value)
Definition pack.h:100
ADf< T, DIM > log(const ADf< T, DIM > &a)
Definition aDiff.h:475
cpu::simd::Pack< T > pow(cpu::simd::Pack< T > base, cpu::simd::Pack< T > exp)
Definition pack.h:112

References olb::util::log(), olb::util::pow(), and olb::util::sqrt().

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