**************************** **Species Volume Expansion** **************************** :: Species Volume Expansion = CONSTANT [1/T] ----------------------- **Description / Usage** ----------------------- This card is used to specify the model for the coefficient of volume expansion associated with the concentration of a particular species. This property is optional for the **BOUSS** and **BOUSSINESQ** option on the *Navier-Stokes Source* card and, if nonzero, will result in a buoyancy term to be added to the Navier-Stokes equation that is apportioned to the species volume expansion coefficient, defined as the logarithmic sensitivity of density to concentration, or (dlnr) ⁄ (dC). +-----------------------+-------------------------------------------------------------------------------------+ |**CONSTANT** |Name of the constant volume expansion coefficient model. | | | | | | * - an integer designating the species equation. | | | * - the value of the constant expansion coefficient. | +-----------------------+-------------------------------------------------------------------------------------+ ------------ **Examples** ------------ The following is a sample input card: :: Species Volume Expansion = CONSTANT 0 0. ------------------------- **Technical Discussion** ------------------------- WARNING: Please be aware that if the thermal volume expansion coefficient is also nonzero, the buoyancy force will be augmented. -------------- **References** -------------- No References.