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A flat plate at zero angle of attack is in a 50° F airflow, at a speed of 260 ft/s. The plate is 4 ft by 10 ft. The goal is to determine what orientation of the plate in the stream leads to minimum drag force. To determine that, compute ReL and then CfL for configuration (a) (Flow is parallel to the long dimension.), and then for configuration (b) (Flow is parallel to the short dimension.) Which orientation turns out to have the lesser drag?

A flat plate at zero angle of attack is in a 50° F airflow, at a speed of 260 ft/s. The plate is 4 ft by 10 ft. The goal is to determine what orientation of the plate in the stream leads to minimum drag force. To determine that, compute ReL and then CfL for configuration (a) (Flow is parallel to the long dimension.), and then for configuration (b) (Flow is parallel to the short dimension.) Which orientation turns out to have the lesser drag?

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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A flat plate at zero angle of attack is in a 50° F airflow, at a speed of 260 ft/s. The plate is 4 ft by 10 ft. The goal is to determine what orientation of the plate in the stream leads to minimum drag force. To determine that, compute Re and then CfL for configuration (a) (Flow is parallel to the long dimension.), and then for configuration (b) (Flow is parallel to the short dimension.) Which orientation turns out to have the lesser drag?
Transcribed Image Text:A flat plate at zero angle of attack is in a 50° F airflow, at a speed of 260 ft/s. The plate is 4 ft by 10 ft. The goal is to determine what orientation of the plate in the stream leads to minimum drag force. To determine that, compute Re and then CfL for configuration (a) (Flow is parallel to the long dimension.), and then for configuration (b) (Flow is parallel to the short dimension.) Which orientation turns out to have the lesser drag?
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