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Problem 3. The inlet contraction and test section of a laboratory wind tunnel are shown. The air speed in the test section is U = 50 m/s. A total-head (or Pitot) tube pointed upstream indicates that the stagnation pressure on the test section centerline is 10 mm of water below atmospheric. The laboratory is maintained at atmospheric pressure and a temperature of -5 °C. (a) Evaluate the dynamic pressure at the centerline of the wind tunnel test section. (b) Compute the static gage pressure at the same point. (c) Discuss qualitatively how the static gage pressure at the tunnel wall may be different from that at the centerline both in the test section and in the contraction. flow Pitot tube U test section contraction

Problem 3. The inlet contraction and test section of a laboratory wind tunnel are shown. The air speed in the test section is U = 50 m/s. A total-head (or Pitot) tube pointed upstream indicates that the stagnation pressure on the test section centerline is 10 mm of water below atmospheric. The laboratory is maintained at atmospheric pressure and a temperature of -5 °C. (a) Evaluate the dynamic pressure at the centerline of the wind tunnel test section. (b) Compute the static gage pressure at the same point. (c) Discuss qualitatively how the static gage pressure at the tunnel wall may be different from that at the centerline both in the test section and in the contraction. flow Pitot tube U test section contraction

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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Problem 3. The inlet contraction and test section of a laboratory wind tunnel are shown. The air speed in the test section is U = 50 m/s. A total-head (or Pitot) tube pointed upstream indicates that the stagnation pressure on the test section centerline is 10 mm of water below atmospheric. The laboratory is maintained at atmospheric pressure and a temperature of -5 °C. (a) Evaluate the dynamic pressure at the centerline of the wind tunnel test section. (b) Compute the static gage pressure at the same point. (c) Discuss qualitatively how the static gage pressure at the tunnel wall may be different from that at the centerline both in the test section and in the contraction. flow Pitot tube U test section contraction
Transcribed Image Text:Problem 3. The inlet contraction and test section of a laboratory wind tunnel are shown. The air speed in the test section is U = 50 m/s. A total-head (or Pitot) tube pointed upstream indicates that the stagnation pressure on the test section centerline is 10 mm of water below atmospheric. The laboratory is maintained at atmospheric pressure and a temperature of -5 °C. (a) Evaluate the dynamic pressure at the centerline of the wind tunnel test section. (b) Compute the static gage pressure at the same point. (c) Discuss qualitatively how the static gage pressure at the tunnel wall may be different from that at the centerline both in the test section and in the contraction. flow Pitot tube U test section contraction
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