Question

Where did we use rotational and irrotational flow

Answer 1

Rotational flow is when the particles of fluids are all rotating about their own axis in addition to their other movement. Irrotational flow is when the individual particles are not rotating around their axis.

Answer 2

Answer:

Explanation:

In rotational flow, the fluid particles apart from moving along the flow, rotate about its own axis with some angular velocity. Generally, ideal fluids (no viscosity) are irrotational, as it has no shear force which would have caused rotation(by generating torque). But in some cases due to the presence of some external factors fluid particles in the ideal fluid can also be rotational.

In irrotational flow, fluid particles while flowing do not rotate about its own axis. The real fluids(fluids having viscosity) have rotational flow.