Question

Discuss practical situations where Bernoulli's theorem fails. How are losses accounted for in real flows?

06 Mar 2026
Answer :
Word Count : 258
Bernoulli’s theorem is based on the assumption of ideal fluid flow where the fluid is incompressible, non-viscous, and the flow is steady along a streamline. In practical situations, these assumptions are rarely satisfied, leading to the failure of Bernoulli’s equation. One major situation where Bernoulli’s theorem fails is in flows involving significant viscosity. In real fluids, internal friction or viscosity causes energy dissipation in ___ _______ ____ ___ _________ __________ __________ ____ __________.
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