Note that, with the opposite sign convention, this is the potential generated by a pointlike Euler equations in two-dimensional incompressible flow.
22.
To obtain the equations of motion for incompressible flow, it is assumed that the density, \ scriptstyle \ rho, is a constant.
23.
,that is "'the mass conservation for a steady incompressible flow states that the density along a streamline is constant " '.
24.
This approach maintains generality, and not requiring that the partial time derivative of the density vanish illustrates that compressible fluids can still undergo incompressible flow.
25.
Tiwari et al . ( 2000 ) performed simulations of incompressible flows as the limit of the compressible Navier Stokes equations with some stiff equation of state.
26.
The analysis assumes that the flow is an incompressible flow, and that the perturbations are governed by the linearized Euler equations and, thus, are inviscid.
27.
The numerical applications presented focused mainly on two-dimensional ( viscous and inviscid ) incompressible flows, but a three-dimensional application example was also provided.
28.
The simple form of Bernoulli's equation is valid for incompressible flows ( e . g . most liquid flows and gases moving at low Mach number ).
29.
Consequently, assuming incompressible flow, the velocity field "'u "'is divergence-free and the velocity potential ? satisfies Laplace's equation
30.
In axisymmetric flow another stream function formulation, called the Stokes stream function, can be used to describe the velocity components of an incompressible flow with one scalar function.