Which of the following conditions must be satisfied for lift force to be developed ?
Correct answer: A. Circulation around the body is essentially required
- A. Circulation around the body is essentially required
- B. The body should be stream lined
- C. The body should be bluff body
- D. The main stream velocity must approach the velocity of sound in that fluid medium
Explanation
Lift is associated with a pressure difference produced by circulation around the body, as in the circulation theory of lift. A body need not be specifically bluff or streamlined, and the flow need not be near sonic speed.
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