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Unformatted text preview: MAE135 Homework No. 6 Spring 2010 Date Assigned: Friday, May 7, 2010 Due date: 5:00 pm Tuesday, May 18, 2010 PROBLEM 1 (10 points) p a p p a p e * (a) M=1 Subsonic Shock e * A /A =4.0 p p e * Shock * 1 a 1 2 A /A =4.0 (b) A /A =2.0 p e * Shock * 1 a 1 2 A /A =4.0 p A /A =3.0 1 2 A /A =4.0 p a p e * A /A =4.0 No shock e p = a p (c) (d) (e) For a nozzle with A e /A * = 4 . 0, find the pressure ratio p /p a for which: (a) sonic flow first occurs at the throat; (b) a shock sits at A 1 /A * = 2 . 0; (c) a shock sits at A 1 /A * = 3 . 0; (d) a shock sits at the exit; (e) the exit flow is supersonic and the exit pressure matches the ambient pressure. (This is called the pressure matched condition at which no shock waves or any other type of waves occur). 1 PROBLEM 2 (10 points) p 1 2 M 1 p 1 p 2 Normal shock Particle seeding In a fluid process application, a shock wave inside a convergent-divergent nozzle is used to disintegrate (break up) small liquid particles seeded in the air flow (the seeding of the particles is light enough...
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This note was uploaded on 08/31/2010 for the course ENGRMAE 135 taught by Professor Staff during the Spring '08 term at UC Irvine.
- Spring '08