Inviscid flow is the flow of an inviscid fluid, in which the viscosity of the fluid is equal to zero. ... When viscous forces are neglected, such as the case of inviscid flow, the Navier–Stokes equation can be simplified to a form known as the Euler equation.

How do I know if my flow is Inviscid?

Answer: All real flows exhibit the effects of mass diffusion, viscosity(friction) and thermal conduction such flows are called viscous flows. A flow that is assumed to involve no friction, thermal conduction or diffusion is called an inviscid flow.

What causes inviscid flow?

In inviscid flow there is no drag due to normal stresses, that is, the pressure field. ... The depletion of momentum in the boundary layer serves to make it less capable of proceeding against an adverse pressure gradient and ultimately leads to separation of the flow.