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Why is the diffuser throat area greater than the nozzle throat area?

Why is the diffuser throat area greater than the nozzle throat area? Correct Answer Rise in entropy within diffuser

In a supersonic wind tunnel, there are two throats present. One is that of the nozzle which is known as the first throat which has sonic speed with corresponding area as A*. The second throat is that of the diffuser which is always greater than the first throat because there’s an increase in entropy due to the presence of shock waves.

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