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When is Bernoulli’s equation applicable between any two points in a flow field?

When is Bernoulli’s equation applicable between any two points in a flow field? Correct Answer The flow is steady, incompressible and irrotalional

Explanation:

Bernoulli's principle states that the sum of pressure energy, kinetic energy, and potential energy per unit volume of an incompressible, non-viscous fluid in a streamlined irrotational flow remains constant along a streamline.

This means that in steady flow the sum of all forms of mechanical energy in a fluid along a streamline is the same at all points on that streamline.

Important Points

The following are the assumptions made in the derivation of Bernoulli's equation: 

  1. The fluid is ideal i.e. viscosity is zero
  2. The flow is steady
  3. The flow is incompressible
  4. The flow is irrotational

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