source_term_settings#

class ansys.fluent.core.generated.solver.settings_271.source_term_settings(name=None, parent=None)#

Configures how particle source terms are applied to the continuous-phase equations.

Attributes

Attribute	Summary
underrelaxation_factor	Sets the under-relaxation factor for DPM source terms. Controls damping of DPM source term updates
update_every_iteration_enabled	Updates DPM source terms at every flow iteration (recommended for unsteady simulations).
linearization	Settings for linearization of DPM source terms. Linearization splits DPM source terms into explicit and implicit
impl_mom_cplg_enabled	Treats DPM momentum source terms implicitly. Improves stability in strongly momentum-coupled flows by treating particle momentum exchange implicitly.
impl_cplg_enabled	Treats all DPM source terms implicitly. Improves convergence when heat or mass coupling is strong, especially in reacting or evaporating flows.
time_accurate_sources_enabled	Uses second-order accurate transient DPM source terms. Provides higher temporal accuracy for transient source terms; mainly relevant for time-accurate studies.
reset_sources_at_timestep	Resets DPM source terms at the beginning of each time step. Generally not required; mainly useful for debugging or restarting coupling behavior in special cases.
linear_change_enabled	Gradually ramps up DPM source terms to avoid sudden coupling shocks during early iterations.

Included in:

Parent	Summary
numerics	Configures numerical options for DPM calculations.