Practice Conservation Across A Normal Shock (5.1) - Compressible Flow

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What happens to the Mach number across a normal shock?
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Think about the transition between speed regimes.
Question 2.
What is one characteristic of a normal shock?
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Consider the pressure behavior when encountering a shock.
3Question 3.
What is the effect of a normal shock on fluid pressure?
- Decreases
- Increases
- Remains the same
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Review how properties change during a shock.
4Question 4.
True or False: A normal shock is isentropic.
- True
- False
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Consider the characteristics of isentropic processes.
Question 5.
A supersonic airplane is cruising at Mach 2.5. Calculate the change in pressure and temperature as it encounters a normal shock, assuming the initial pressure is 101325 Pa.
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You will need to apply the continuity and energy equations appropriately.
Question 6.
Discuss the implications of normal shocks on the design of supersonic engines. How do engineers mitigate negative effects?
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Consider how aerodynamic shapes contribute to performance.

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