### 6.2.2. Buoyancy Force on Particles

The buoyancy force is the force on a particle immersed in a fluid. The buoyant force is equal to the weight of the displaced fluid and is given by

| (6–16)

where is the gravity vector.

This leads to the following contribution to the right hand side of Equation 6–7:

| (6–17)

The buoyancy force has no contribution to the particle momentum source into the continuous phase.

Release 18.2 - © ANSYS, Inc. All rights reserved.