Question

If flow is irrotational does it not have velocity potential

Answer 1

$\huge\underline\mathfrak\red{AnSweR}$

$\textbf{Explanation:}$

Only if the Curl of the velocity vector is zero,there exists a scalar function (Velocity potential in our case). Curl of velocity vector equal to zero means the flow is irrotational ! Hence,Velocity potential exists only for a irrotational flow !

Answer 2

Steady, inviscid and irrotational: If at any given point the velocity does notchange in magnitude or direction with time, then the flow is called as steadyflow. An example of steady flow isflow of a fluid through a pipe at a constant rate. ... A flow is said to be inviscid if the effects of viscosity are absent.