Experimental studies of noise from subsonic jets in still air / Leslie W. Lassiter and Harvey H. Hubbard.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
National Advisory Committee for Aeronautics,
1952.
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| Series: | Technical note (United States. National Advisory Committee for Aeronautics) ;
2757. |
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| Abstract: | Experimental studies have been made of the noise from a series of model subsonic jets ranging in diameter from 0.75 to 12.0 inches and the results are compared with data obtained for a turbojet engine. The effects of such parameters as jet size, exit gas velocity, density, and turbulence level on the noise generated in the mixing region of a jet are evaluated. The velocity and turbulence lever were found to have the greatest effect on the noise intensities and the frequency content was found to be a function of jet size and observer location. The noise generated by the turbojet engine was found to be closely related to that generated by simple model jets and an empirical relation is given to allow the extrapolation of available jet-noise data to other operating conditions. |
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| Item Description: | "August 1952." NACA TN Number 2757. |
| Physical Description: | 35 pages : illustrations ; 28 cm. |
| Bibliography: | Includes bibliographical references. |
| Action Note: | committed to retain 20230101 20480101 Alliance Shared Trust https://www.coalliance.org/shared-print-archiving-policies. |