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GRAVITY - Add gravity body forces

GRAVITY xc yc zc gx gy gz

The GRAVITY keyword allows the user to include the effects of gravity on the fluid.

    xcyczc   Coordinates of a point on the "ground" plane (normal to the gravity vector) used to define the location of zero potential energy, in grid units
gxgygz Components of the gravity vector, in ft/sec2. For example, if the y direction is normal to the earth's surface, these values might be 0.0, −32.2, 0.0.

This keyword cannot be used with the Van Leer differencing scheme (RHS VANLEER).

Last updated 31 May 2007