FvSolution

Generates the OpenFOAM fvSolution file that defines linear equation solvers, solver algorithm (SIMPLE/PISO/PIMPLE), and relaxation factors.

Type: openFOAM.system.FvSolution

Parameters

Parameter	Type	Description
fields	object	Per-field linear solver settings
solverProperties	object	Solution algorithm settings (SIMPLE, PISO, or PIMPLE)
relaxationFactors	object	Under-relaxation factors for fields and equations

Field Solver Settings

Each field defines its linear solver:

Property	Type	Description
solver	string	Linear solver type (GAMG, PBiCGStab, smoothSolver)
preconditioner	string	Preconditioner (e.g., DILU, DIC)
tolerance	number	Absolute tolerance
relTol	number	Relative tolerance
smoother	string	Smoother type (for smoothSolver and GAMG)

Solution Algorithm

Property	Type	Description
type	string	Algorithm type: SIMPLE, PISO, or PIMPLE
nNonOrthogonalCorrectors	integer	Non-orthogonal correction steps
nCorrectors	integer	Pressure correction steps (PISO/PIMPLE)
residualControl	object	Convergence criteria per field

Output

Field	Description
Result	The rendered fvSolution file content

Example

{
    "FvSolution": {
        "Execution": {
            "input_parameters": {
                "fields": {
                    "p": {
                        "solver": "GAMG",
                        "tolerance": 1e-06,
                        "relTol": 0.1,
                        "smoother": "GaussSeidel"
                    },
                    "U": {
                        "solver": "smoothSolver",
                        "smoother": "symGaussSeidel",
                        "tolerance": 1e-05,
                        "relTol": 0.1
                    }
                },
                "solverProperties": {
                    "type": "SIMPLE",
                    "nNonOrthogonalCorrectors": 0,
                    "residualControl": {
                        "p": 1e-04,
                        "U": 1e-04
                    }
                },
                "relaxationFactors": {
                    "fields": {"p": 0.3},
                    "equations": {"U": 0.7, "k": 0.7, "epsilon": 0.7}
                }
            }
        },
        "type": "openFOAM.system.FvSolution"
    }
}