==== Forces on the fluid ====

Only the gravity is considered through the thermal buoyancy effect. The gravity force is oriented facing downward.

   &Gravity Gravity_Enabled= .true.          ,     !--- the gravity force is enabled
            Gravity_Angle_IJ= 0.0            ,     !--- {IJ} angle (in degree unit)
            Gravity_Angle_IK= 90.0           ,     !--- {IK} angle (in degree unit)
            Reference_Gravity_Constant= 1.D+00/    !--- dimensionless value of g0
            
<note information>
For more information on the gravity data set, see the [[sunfluidh:gravity_namelist|Namelist "Gravity"]].
</note>