MAE 101A Summer I 2009 HW 5

MAE 101A Summer I 2009 HW 5 - the prototype blast with...

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MAE 101A (Summer 2009) - Homework # 5 Due: Friday, July 31, 2009, at 7:00 pm (105 Center Hall) Problem 1: A blast, shown in the diagram, results in a pressure rise ( p = p 2 – p 1 ) across the high-speed blast wave that it generates. This pressure rise is assumed to be a function of the following variables: - amount of energy released in the explosion (E); - air density ( ) - speed of sound (c); - distance from the blast (d). (a) Obtain the dimensionless form of this relationship. (b) Consider two blasts:
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Unformatted text preview: the prototype blast with energy release E p , and a model blast with 1/1000th of the prototype energy release (E m = 0.001 E p ). At what distance (in miles) from the model blast will the pressure rise be the same as that at a distance of 1 mile from the prototype blast? Note : Similarity principles require that all of the dimensionless parameters obtained in Part (a) must be satisfied between the prototype and the model. Problem 2: Solve Problem P5.22 of the textbook....
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This note was uploaded on 04/25/2010 for the course MAE 213 taught by Professor Seshadri,k during the Spring '08 term at UCSD.

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