- Additional Authors
- Description
- 2 microfiches (xv, 92 pages) : negative, illustrations; 11 x 15 cm.
- Summary
- "The existence of a large scale structure in a Mach number 0.6, axisymmetric jet of cold air was proven. In order to further characterize the coherent structure, phase averaged measurements of the axial mass velocity, radial velocity, and the product of the two were made. These measurements yield information about the percent of the total fluctuations contained in the coherent structure. These measured values were compared to the total fluctuation levels for each quantity and the result expressed as a percent of the total fluctuation level contained in the organized structure at a given frequency. These measurements were performed for five frequencies (St=0.16, 0.32, 0.474, 0.95, and 1.26). All of the phase averaged measurements required that the jet be artificially excited."--NTIS abstract.
- Series Statement
- NASA-CR ; 175359
- Uniform Title
- NASA contractor report ; NASA CR-175359.
- Subject
- Note
- "Dec. 1983."
- "Submitted to the Graduate College of Texas A & M University in partial fulfillment of the requirements for the Master of Science".
- Bibliography (note)
- Includes bibliographical references (pages 80-82).
- Type of Report (note)
- Funding (note)
- Sponsored by the National Aeronautics and Space Administration
- Call Number
- GPO Microfiche NAS 1.26:175359
- OCLC
- marcive162685479
- Author
Emami, Saied, 1956- author.
- Title
Phase averaged measurements of the coherent structure of a Mach number 0.6 jet / a thesis by Saied Emami.
- Publisher
[College Station, Texas] : Texas A&M University ; [Washington D.C.] : [National Aeronautics and Space Administration], December 1983.
- Type of Content
text
- Type of Medium
microform
- Type of Carrier
microfiche
- Series
NASA-CR ; 175359
NASA contractor report ; NASA CR-175359.
- Thesis
M.A. Texas A & M University 1983.
- Bibliography
Includes bibliographical references (pages 80-82).
- Type Of Report
Final report.
- Funding
Sponsored by the National Aeronautics and Space Administration NAG1-112.
- Indexed Term
"Major subject: Mechanical Engineering."
Aircraft noise; Coherent acoustic radiation; Flow distribution; Mach number; Noise reduction; Flow velocity; Jet flow; Radial velocity
- Added Author
Texas A & M University, issuing body.
United States. National Aeronautics and Space Administration, sponsoring body.
- Other Form:
Online version: Emami, Saied. Phase averaged measurements of the coherent structure of a Mach number 0.6 jet (OCoLC)890468225
- Gpo Item No.
0830-H-14 (MF)
- Sudoc No.
NAS 1.26:175359