The virtual mass force is proportional to relative phasic accelerations as follows:

(5–80)

In a rotating frame of reference with rotation vector , the virtual mass force in terms of is modified by Coriolis theorem, and is given by:

(5–81)

The non-dimensional virtual mass coefficient for inviscid flow around an isolated sphere. In general, depends on shape and particle concentration may be specified by you as a constant or a CEL expression.