Publication:
Attenuation of Guided, Repeated Shock Waves in Gases

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Authors
Medwin, H.
Subjects
Advisors
Date of Issue
1964, May
Date
Publisher
Acoustical Society of America
Language
Abstract
The attenuation of guided, “plane,” progressive, repeated shock waves has been measured in circular tubes of radius ranging from 0.96–5.4 cm at several frequencies and intensities for air and five other gases. Analysis of the data leads to the conclusions: (a) the wall attenuation of a guided sawtooth wave corresponds to that of a single shock and shows no dependence on frequency; (b) correcting for wall loss by subtracting the experimental wall‐attenuation term from the total attenuation does not eliminate the fundamental disagreement between the theoretical predictions for infinite sawtooth waves and the experimental values for guided sawtooth waves. The disagreement is apparently due to the gross discrepancy between the fluid‐dynamic relations that are assumed by the theorists and the experimental situation. An empirical law is presented for the attenuation of guided, repeated shock waves in air.
Type
Article
Description
The article of record as published may be found at http://dx.doi.org/10.1121/1.1919107
Series/Report No
Department
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Office of Naval Research
Funder
Format
8 p.
Citation
Medwin, H. "Attenuation of guided, repeated shock waves in gases." The Journal of the Acoustical Society of America 36.5 (1964): 870-877.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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