cfd term command

Syntax

cfd term keyword

Primary keywords:

epschi    gradp

Modify terms used in drag force calculations.

epschi b

If on (the default), the $\epsilon^{-\chi}$ term in Equation (10) in the “Theory and Background” section is included. This term adjusts the particle drag force to account for the increase in drag at low porosities.

gradp b

If on, the $\nabla P$ term from Equation (16) in the “Theory and Background” section is included. This term adjusts the particle drag force as a result of the pressure gradient. By default, this term is not included.