This preview shows pages 1–33. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: ME309 Fall 2009 Lecture 25: Compressible Flow Andrew Lee Maurice J. Zucrow Laboratories Purdue University West Lafayette, Indiana The Mach Cone
Let's consider a point source of sound that emits a pulse every t seconds Stationary
11/23/2009 Andrew Lee 2 The Mach Cone
Let's consider a point source of sound that emits a pulse every t seconds V<C
11/23/2009 Andrew Lee 3 The Mach Cone
Let's consider a point source of sound that emits a pulse every t seconds V=C
11/23/2009 Andrew Lee 4 The Mach Cone
Let's consider a point source of sound that emits a pulse every t seconds = sin 1 1 M V>C
11/23/2009 Andrew Lee 5 The Mach Cone
Example 12.4 In tests of a protective material, we wish to photograph bullet as it impacts a jacket made of the material. A camera is set up a perpendicular distance d from the target plane. We wish to determine the perpendicular distance d from the target plane at which the camera must be placed such that the sound of the bullet will trigger the camera at the impact time. Note: The bullet speed is measured to be 550 m/s; the delay time of the camera is 0.005 s. 5m d=?
11/23/2009 Andrew Lee 6 Propagation of Sound Waves 11/23/2009 Andrew Lee 7 Propagation of Sound Waves
The speed of sound in a medium 11/23/2009 Andrew Lee 8 ...
View
Full
Document
This note was uploaded on 04/28/2010 for the course ME 309 taught by Professor Merkle during the Spring '08 term at Purdue UniversityWest Lafayette.
 Spring '08
 MERKLE

Click to edit the document details