navier_stokes/function/RossEthierSteinmanDec.hpp

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/*!
    @file Ross-Ethier Steinmann Analytical Solution
    @brief A short description of the test content

    @author      Christoph Winkelmann <christoph.winkelmann@epfl.ch>
    @contributor Mauro Perego         <mauro@mathcs.emory.edu>
    @contributor Umberto Villa        <uvilla@emory.edu>
    @maintainer  Umberto Villa        <uvilla@emory.edu>

    @date 2004-11-12

    Exponentially increasing analytic solution of Ross-Ethier Steinmann for unsteady Navier-Stokes 3D on the cube [-1,1]x[-1,1]x[-1,1].
    @see Exact fully 3D Navier-Stokes solutions for benchmarking - C. Ross Ethier, D. A. Steinman
 */

/*
 *
AU: C. Ross Ethier
AU: D. A. Steinman
TI: Exact fully 3D Navier-Stokes solutions for benchmarking
SO: International Journal for Numerical Methods in Fluids
VL: 19
NO: 5
PG: 369-375
YR: 1994
CP: Copyright © 1994 John Wiley & Sons, Ltd
ON: 1097-0363
PN: 0271-2091
AD: Department of Mechanical Engineering, 5 King's College Road, University of Toronto, Toronto, Ontario M5S IA4, Canada
DOI: 10.1002/fld.1650190502
US: http://dx.doi.org/10.1002/fld.1650190502
 *
 */

#ifndef __ROSS_ETHIER_STEINMAN_DEC_HPP
#define __ROSS_ETHIER_STEINMAN_DEC_HPP 1

#include <lifev/core/LifeV.hpp>
#include <lifev/core/filter/GetPot.hpp>

namespace LifeV
{

class RossEthierSteinmanUnsteadyDec
{
public:
    static Real f ( const Real& t, const Real& x, const Real& y,
                    const Real& z, const ID& i );
    static Real xexact ( const Real& t, const Real& x, const Real& y,
                         const Real& z, const ID& i );
    static Real uexact ( const Real& t, const Real& x, const Real& y,
                         const Real& z, const ID& i );
    static Real uderexact ( const Real& t, const Real& x, const Real& y,
                            const Real& z, const ID& i );
    static Real pexact ( const Real& t, const Real& x, const Real& y,
                         const Real& z, const ID& i );
    static Real grad_u ( const UInt& icoor, const Real& t, const Real& x, const Real& y,
                         const Real& z, const ID& i );

    // Initial velocity
    static Real x0 ( const Real& t, const Real& x, const Real& y,
                     const Real& z, const ID& i );

    static Real fNeumann ( const Real& t, const Real& x, const Real& y,
                           const Real& z, const ID& i );

    static Real normalVector ( const Real& t, const Real& x, const Real& y,
                               const Real& z, const ID& i );

    static Real fShearStress ( const Real& t, const Real& x, const Real& y,
                               const Real& z, const ID& i );

    static Real fWallShearStress ( const Real& t, const Real& x, const Real& y,
                                   const Real& z, const ID& i );

    static void setParamsFromGetPot ( const GetPot& dataFile );
    static void setA (const Real& aValue);
    static void setD (const Real& dValue);
    static void setViscosity (const Real& mu);
    static void setDensity (const Real& rho);
    static void setFlagStrain (const Int& flagValue);

private:

    static Real S_a;
    static Real S_d;
    static Real S_mu;
    static Real S_rho;
    static Real S_nu;
    static Int  S_flagStrain;
}; // class RossEthierSteinmanUnsteadyDec

} // namespace LifeV

#endif /* __ROSS_ETHIER_STEINMAN_DEC_HPP */