# PARAM, GFL

Bulk Data Entry Specifies the uniform fluid damping coefficient for dynamic analyses.

Parameter Values Description
GFL <Real>

Default = 0.0

GFL specifies the uniform fluid damping coefficient in the formulation of dynamics problems. To obtain the value for the parameter GFL, multiply the critical damping ration, $C/{C}_{0}$ , by 2.0.

In coupled fluid-structure models, PARAM, G is applied to structural portion and PARAM, GFL to the fluid portion.