For an analogy, the supergravity description is like treating water as a continuous, incompressible fluid.
These terms sum to zero in an incompressible fluid.
Using an incompressible fluid increases system rigidity and reduces compliant behavior.
Hydraulic systems rely on an incompressible fluid to transmit force.
Pressure of their incompressible internal bodily fluid on the body wall provides rigidity, and muscles are able to act against it.
In the case of an incompressible fluid, is a constant and the equation reduces to:
In the case of an incompressible fluid there is no relationship between the pressure and the density.
The three terms are used to define the state of a closed system of an incompressible, constant-density fluid.
Bernoulli's equation is fundamental to the dynamics of incompressible fluids.
This additional term disappears for incompressible fluid, when the divergence of the flow equals 0.