opm-simulators/opm/core/fluid/IncompPropertiesInterface.hpp
Atgeirr Flø Rasmussen ca15ce6eec Fix comment.
2012-10-10 14:12:38 +02:00

131 lines
5.6 KiB
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/*
Copyright 2012 SINTEF ICT, Applied Mathematics.
This file is part of the Open Porous Media project (OPM).
OPM is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OPM is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OPM. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPM_INCOMPPROPERTIESINTERFACE_HEADER_INCLUDED
#define OPM_INCOMPPROPERTIESINTERFACE_HEADER_INCLUDED
namespace Opm
{
/// Abstract base class for incompressible fluid and reservoir properties.
///
/// Supports variable number of spatial dimensions, called D.
/// Supports variable number of phases, called P.
/// In general, when arguments call for n values of some vector or
/// matrix property, such as saturation, they shall always be
/// ordered cellwise:
/// [s^1_0 s^2_0 s^3_0 s^1_1 s^2_2 ... ]
/// in which s^i_j denotes saturation of phase i in cell j.
class IncompPropertiesInterface
{
public:
virtual ~IncompPropertiesInterface() {}
// ---- Rock interface ----
/// \return D, the number of spatial dimensions.
virtual int numDimensions() const = 0;
/// \return N, the number of cells.
virtual int numCells() const = 0;
/// \return Array of N porosity values.
virtual const double* porosity() const = 0;
/// \return Array of ND^2 permeability values.
/// The D^2 permeability values for a cell are organized as a matrix,
/// which is symmetric (so ordering does not matter).
virtual const double* permeability() const = 0;
// ---- Fluid interface ----
/// \return P, the number of phases (also the number of components).
virtual int numPhases() const = 0;
/// \return Array of P viscosity values.
virtual const double* viscosity() const = 0;
/// Densities of fluid phases at reservoir conditions.
/// \return Array of P density values.
virtual const double* density() const = 0;
/// Densities of fluid phases at surface conditions.
/// Note: a reasonable question to ask is why there can be
/// different densities at surface and reservoir conditions,
/// when the phases are assumed incompressible. The answer is
/// that even if we approximate the phases as being
/// incompressible during simulation, the density difference
/// between surface and reservoir may be larger. For accurate
/// reporting and using data given in terms of surface values,
/// we need to handle this difference.
/// \return Array of P density values.
virtual const double* surfaceDensity() const = 0;
/// \param[in] n Number of data points.
/// \param[in] s Array of nP saturation values.
/// \param[in] cells Array of n cell indices to be associated with the s values.
/// \param[out] kr Array of nP relperm values, array must be valid before calling.
/// \param[out] dkrds If non-null: array of nP^2 relperm derivative values,
/// array must be valid before calling.
/// The P^2 derivative matrix is
/// m_{ij} = \frac{dkr_i}{ds^j},
/// and is output in Fortran order (m_00 m_10 m_20 m01 ...)
virtual void relperm(const int n,
const double* s,
const int* cells,
double* kr,
double* dkrds) const = 0;
/// \param[in] n Number of data points.
/// \param[in] s Array of nP saturation values.
/// \param[in] cells Array of n cell indices to be associated with the s values.
/// \param[out] pc Array of nP capillary pressure values, array must be valid before calling.
/// \param[out] dpcds If non-null: array of nP^2 derivative values,
/// array must be valid before calling.
/// The P^2 derivative matrix is
/// m_{ij} = \frac{dpc_i}{ds^j},
/// and is output in Fortran order (m_00 m_10 m_20 m01 ...)
virtual void capPress(const int n,
const double* s,
const int* cells,
double* pc,
double* dpcds) const = 0;
/// Obtain the range of allowable saturation values.
/// In cell cells[i], saturation of phase p is allowed to be
/// in the interval [smin[i*P + p], smax[i*P + p]].
/// \param[in] n Number of data points.
/// \param[in] cells Array of n cell indices.
/// \param[out] smin Array of nP minimum s values, array must be valid before calling.
/// \param[out] smax Array of nP maximum s values, array must be valid before calling.
virtual void satRange(const int n,
const int* cells,
double* smin,
double* smax) const = 0;
};
} // namespace Opm
#endif // OPM_INCOMPPROPERTIESINTERFACE_HEADER_INCLUDED