Gravity
The Gravity global feature is automatically added when Include gravity is selected at the interface level in the Physical Model settings. It defines the gravity forces from the Acceleration of gravity value.
Acceleration of Gravity
The Acceleration of gravity (SI unit m/s, default value gconstez in 2D axial symmetry and 3D and gconstey in 2D) is used to define the gravity forces. It should be a global quantity.