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A body is reentering the earth's atmosphere at a Mach number of 20. In front of the body is a shockwave, as shown in Figure P4.6. Opposite the nose of the body, the shock can be seen to be normal to the flow direction. Determine the stagnation pressure and tempera- ture to which the nose is subjected. Assume that the air behaves as a perfect gas (neglect dissociation) with constant y = 1.4. The ambient pressure and temperature are 1.0 kPa and 220 K, respectively.

A body is reentering the earth's atmosphere at a Mach number of 20. In front of the body is a shockwave, as shown in Figure P4.6. Opposite the nose of the body, the shock can be seen to be normal to the flow direction. Determine the stagnation pressure and tempera- ture to which the nose is subjected. Assume that the air behaves as a perfect gas (neglect dissociation) with constant y = 1.4. The ambient pressure and temperature are 1.0 kPa and 220 K, respectively.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Please answer the second question related to the what is the temperature of the sun in detail. Dont solve the problem. Thanks!~

What is the temperature of the Sun (google for the answer)? What is the re-entry temperature of the Space Shuttle (google for the answer)? Why don’t you burn up at the reentry temperature that you've calculated for this Mach 20 flow? The answer to this question will lead you to recognize that Figure 4.6 is wrong and that the body should actually re-enter the Earth's atmosphere in the opposite direction. (ie.. blunt/flat surface first.)
Transcribed Image Text:What is the temperature of the Sun (google for the answer)? What is the re-entry temperature of the Space Shuttle (google for the answer)? Why don’t you burn up at the reentry temperature that you've calculated for this Mach 20 flow? The answer to this question will lead you to recognize that Figure 4.6 is wrong and that the body should actually re-enter the Earth's atmosphere in the opposite direction. (ie.. blunt/flat surface first.)
A body is reentering the earth's atmosphere at a Mach number of 20. In front of the body is a shockwave, as shown in Figure P4.6. Opposite the nose of the body, the shock can be seen to be normal to the flow direction. Determine the stagnation pressure and tempera- ture to which the nose is subjected. Assume that the air behaves as a perfect gas (neglect dissociation) with constant y = 1.4. The ambient pressure and temperature are 1.0 kPa and 220 K, respectively. Figure P4.6
Transcribed Image Text:A body is reentering the earth's atmosphere at a Mach number of 20. In front of the body is a shockwave, as shown in Figure P4.6. Opposite the nose of the body, the shock can be seen to be normal to the flow direction. Determine the stagnation pressure and tempera- ture to which the nose is subjected. Assume that the air behaves as a perfect gas (neglect dissociation) with constant y = 1.4. The ambient pressure and temperature are 1.0 kPa and 220 K, respectively. Figure P4.6
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