particle_forces

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

Bases: Group

Configures and enables forces acting on particles. Force models are critical in flows with strong gradients, ~%shear, buoyancy, or temperature differences where secondary forces significantly affect trajectories.

Attributes

Attribute	Summary
pressure_gradient_force	Legacy option retained for backward compatibility.
pressure_force_enabled	Includes pressure gradient force acting on particles. Relevant in strongly accelerating (curved) or non-uniform flows, especially for light particles.
virtual_mass_force	Configures the virtual mass force model. Important when particle density is comparable to or lower than fluid density (e.g., bubbles, light droplets).
saffman_lift_force_enabled	Includes Saffman lift force. Important in shear flows where velocity gradients induce lateral migration of small particles.
thermophoretic_force_enabled	Includes thermophoretic force from temperature gradients. Important in strong temperature gradients, such as combustion or near heated surfaces.

Included in:

Parent	Summary
physical_models	Enables and configures physical submodels for the discrete phase.