`pycanha_core.solvers` — Solver Classes#

The solvers submodule exposes the steady-state and transient solver classes.

class Solver#

Bases: object

Abstract base class for thermal solvers.

Lifecycle: initialize() -> solve() -> deinitialize().

property MAX_ITERS#: Maximum number of solver iterations per step.

__init__(*args, **kwargs)#

property abstol_enrgy#: Absolute energy convergence tolerance [W].

property abstol_temp#: Absolute temperature convergence tolerance [K].

property eps_capacity#: Minimum thermal capacity threshold [J/K].

property eps_coupling#: Minimum coupling value threshold.

property eps_time#: Time step epsilon [s].

property pardiso_iparm_3#: MKL PARDISO iparm[3] parameter (preconditioner control).

property solver_converged#: Whether the solver has converged.

property solver_initialized#: Whether initialize() has been called.

property solver_iter#: Current solver iteration count.

property solver_name#: Name of the solver.

class SteadyStateSolver#

Bases: Solver

Base class for steady-state (time-independent) solvers.

__init__(*args, **kwargs)#

class TransientSolver#

Bases: Solver

Base class for transient (time-dependent) solvers.

__init__(*args, **kwargs)#

property output_config#: Reference to the output configuration.

property output_model_name#: Name of the DataModel where output is stored.

set_simulation_time#: Configure the transient simulation time window and output interval.

property time#: Current simulation time [s].

property time_iter#: Current time iteration index.

class TSCN#

Bases: TransientSolver

Base class for Crank-Nicolson transient solvers.

__init__(*args, **kwargs)#

class TSCNRL#

Bases: TSCN

Transient Crank-Nicolson solver with radiation linearization.

__init__(*args, **kwargs)#

class SSLU(*args, **kwargs)#

Bases: SteadyStateSolver

Steady-state solver using sparse LU decomposition.

Solves the non-linear steady-state thermal equation iteratively using Eigen SparseLU factorization.

__init__#: Create a solver bound to a ThermalMathematicalModel.

deinitialize#: Release solver resources.

initialize#: Allocate solver resources and prepare matrices.

solve#: Run the steady-state solve to convergence.

class TSCNRLDS(*args, **kwargs)#

Bases: TSCNRL

Transient Crank-Nicolson solver with radiation linearization and direct sparse factorization.

Uses MKL PARDISO when available, otherwise Eigen SparseLU.

__init__#: Create a solver bound to a ThermalMathematicalModel.

deinitialize#: Release solver resources.

initialize#: Allocate solver resources and prepare matrices.

solve#: Run the transient simulation over the configured time window.

class TSCNRLDS_JACOBIAN(*args, **kwargs)#

Bases: TSCNRLDS

TSCNRLDS solver extended with Jacobian (sensitivity) output.

Computes dT/dp for each parameter during the transient simulation.

__init__#: Create a Jacobian solver bound to a ThermalMathematicalModel.

deinitialize#: Release solver resources.

initialize#: Allocate solver resources and collect parameter names.

property parameter_names#: List of parameter names for which sensitivities are computed.

solve#: Run the transient simulation with Jacobian computation.

pycanha_core.solvers — Solver Classes#

`pycanha_core.solvers` — Solver Classes#