implicitsolvers.h

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#ifndef IMPLICITSOLVERS_H
#define IMPLICITSOLVERS_H
 
#include "variables.h" // Provides definitions for UserCtx, SimCtx, IBMNodes, etc.
#include "logging.h"
#include "rhs.h"
#include "Boundaries.h"
 
/*================================================================================*
 *                        MOMENTUM EQUATION SOLVERS                               *
 *================================================================================*/
 
/**
 * @brief Advances the momentum equations using an explicit 4th-order Runge-Kutta scheme.
 * @param user Array of UserCtx structs for all blocks.
 * @param ibm  (Optional) Pointer to IBM data. Pass NULL if disabled.
 * @param fsi  (Optional) Pointer to FSI data. Pass NULL if disabled.
 * @return PetscErrorCode 0 on success.
 */
extern PetscErrorCode RungeKutta(UserCtx *user, IBMNodes *ibm, FSInfo *fsi);
 
/**
 * @brief Advances the momentum equations using an implicit scheme.
 * @param user Array of UserCtx structs for all blocks.
 * @param ibm  (Optional) Pointer to IBM data. Pass NULL if disabled.
 * @param fsi  (Optional) Pointer to FSI data. Pass NULL if disabled.
 * @return PetscErrorCode 0 on success.
 */
extern PetscErrorCode ImplicitMomentumSolver(UserCtx *user, IBMNodes *ibm, FSInfo *fsi);
 
// Add other implicit solver prototypes if you plan to use them.
// extern PetscErrorCode ImplicitMomentumSolver1(UserCtx *user, IBMNodes *ibm, FSInfo *fsi);
// extern PetscErrorCode Implicit_SNES(UserCtx *user, IBMNodes *ibm, FSInfo *fsi);
 
#endif // IMPLICITSOLVERS_H