Question

Bernoulli’s equation is not applicable for
1. Steady flow
2. Incompressible flow
3. Flow with work transfer
4. Frictionless flow

Answer 1

Correct Answer - Option 3 : Flow with work transfer

Bernoulli’s equation:

• It can be derived from the principle of conservation of energy.
• It states that, in a steady flow, the sum of all forms of energy in a fluid along a streamline is the same at all points on that streamline.
• It represented in head form (the total energy per unit weight).

Following assumption are made in deriving Bernoulli’s equation:

Bernoulli’s equation assumptions:

1. The fluid is ideal, i.e. fluid has zero viscosity
2. Flow is steady
3. Flow is continuous
4. Flow is incompressible
5. Flow is irrotational
6. Flow is along a streamline.