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What is the entropy gradient at the nose region of a slender body at hypersonic flow?

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What is the entropy gradient at the nose region of a slender body at hypersonic flow?

(a) Very high

(b) Very low

(c) Negligible

(d) Infinity

The question was asked in semester exam.

Question is taken from Hypersonic Flow in portion Transonic and Hypersonic Flows of Aerodynamics

1 Answer

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Best answer
Right answer is (a) Very high

Explanation: At the nose region of the slender body, the shock wave is considered to be a normal shock. The entropy change across a strong shock wave is high. Thus the entropy gradient in the nose region is extremely high because of strong normal shock.

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