Class RoughLogLawOfTheWall

Defined in File RoughLogLawOfTheWall.H

Inheritance Relationships

Base Type

public LawOfTheWall (Class LawOfTheWall)

Class Documentation

class RoughLogLawOfTheWall : public LawOfTheWall 

A log-law, in which the wall-normal distance is scaled by roughness length-scale.

\[ u^+ = 1/\kappa \log \left( y/k_s \right) + B \]

Since the formula above provides an explicit value for the friction velocity Newton’s method will converge in a single iteration.

Usage:

    Law
    {
        type      RoughLogLaw;
        kappa     value; (default 0.4)
        B         value; 
        ks        value;
    }

Contributors/Copyright: 2019-2023 Timofey Mukha

Source files

Public Functions

RoughLogLawOfTheWall(const dictionary&): Construct provided dictionary.

RoughLogLawOfTheWall(const word &lawname, const dictionary&): Construct provided TypeName and dictionary.

RoughLogLawOfTheWall(const scalar kappa, const scalar B, const scalar ks): Construct from model constants.

RoughLogLawOfTheWall(const RoughLogLawOfTheWall&) = default: Copy constructor.

RoughLogLawOfTheWall &operator=(const RoughLogLawOfTheWall&) = default: Assignment.

inline virtual autoPtr<LawOfTheWall> clone() const override: Clone.

inline virtual ~RoughLogLawOfTheWall(): Destructor.

inline scalar kappa() const

inline scalar B() const

inline scalar ks() const

virtual void printCoeffs() const override: Print the model coefficients to terminal.

virtual scalar value(const SingleCellSampler &sampler, label index, scalar uTau, scalar nu) const override: Return the value of the implicit function defining the law.

scalar value(scalar u, scalar y, scalar uTau, scalar nu) const

virtual scalar derivative(const SingleCellSampler &sampler, label index, scalar uTau, scalar nu) const override

Return the value of the derivative of the implicit function.

defining the law.

scalar derivative() const