A cylinder 4 ft in diameter is placed in an air stream where the free-stream velocity is 100 ft/s. 1/ What is the vortex strength required to place the stagnation points at 0= 45 and 0 = 135? Does the vortex rotate clockwise or counterclockwise?

A cylinder 4 ft in diameter is placed in an air stream where the free-stream velocity is 100 ft/s. 1/ What is the vortex strength required to place the stagnation points at 0= 45 and 0 = 135? Does the vortex rotate clockwise or counterclockwise?

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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Question

A cylinder 4 ft in diameter is placed in an air stream where the free-stream velocity is 100 ft/s.
1/ What is the vortex strength required to place the stagnation points at 0= 45° and 0 = 135? Does the
vortex rotate clockwise or counterclockwise?
2/ Given the freestream pressure of 1967 Ibf/ft? and freestream temperature of 68F, calculate the
pressure at the stagnation points? Hint: first find the freestream density.

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