Species Volume Expansion#

Species Volume Expansion = CONSTANT <species> <float> [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).


Name of the constant volume expansion coefficient model.

  • <species> - an integer designating the species equation.

  • <float> - the value of the constant expansion coefficient.


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.


No References.