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Document public interface hybsys_compute_press_flux().

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Likely to be refined at a later stage.
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Bård Skaflestad 2012-06-29 23:44:40 +02:00
parent fed0117242
commit fae98697a6
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opm/core/pressure/mimetic/hybsys.h
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@ -479,6 +479,46 @@ hybsys_well_cellcontrib_symm(int c, int ngconn, int p1,
const double *WI, const double *wdp,
struct hybsys *sys, struct hybsys_well *wsys);
/**
* Recover cell pressures and outward fluxes (with respect to cells--i.e., the
* ``half-face fluxes'') through back substitution after solving a symmetric
* (i.e., incompressible) Schur complement system of simultaneous linear
* equations.
*
* Specifically, given the solution \f$\pi\f$ to the global system of
* simultaneous linear equations, \f$A\pi=b\f$, that arises as a result of the
* Schur complement analysis, this function recovers the cell pressures \f$p\f$
* and outward fluxes \f$v\f$ defined by
* \f[
* \begin{aligned}
* Lp &= g - C_2^\mathsf{T}B^{-1}G + F_2\pi \\
* Bv &= G + C_1p - D\pi
* \end{aligned}.
* \f]
*
* @param[in] nc Total number of grid cells.
* @param[in] pconn Cell-to-face start pointers.
* @param[in] conn Cell-to-face mapping.
* @param[in] gpress Gravity contributions of all cells. Must coincide with
* equally named parameter in calls to cell contribution
* functions such as hybsys_cellcontrib_symm().
* @param[in] Binv Inverse inner products for all cells. Must coincide
* with equally named parameter in calls to contribution
* functions such as hybsys_cellcontrib_symm().
* @param[in] sys Hybrid system management structure coinciding with
* equally named parameter in contribution functions such
* as hybsys_cellcontrib_symm() or
* hybsys_cellcontrib_unsymm().
* @param[in] pi Solution (interface/contact pressure) obtained from
* solving the global system \f$A\pi = b\f$.
* @param[out] press Cell pressures, \f$p\f$. Array of size @c nc.
* @param[out] flux Outward interface fluxes, \f$v\f$. Array of size
* <CODE>pconn[nc]</CODE>.
* @param[in,out] work Scratch array for temporary results. Array of size at
* least \f$\max_c \{ \mathit{pconn}_{c + 1}
* - \mathit{pconn}_c \} \f$.
*/
void
hybsys_compute_press_flux(int nc, const int *pconn, const int *conn,
const double *gpress,