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Analysis of liquid rocket combustion chamber turbulence levels from diffusion dataThe intensity of turbulence and the Lagrangian correlation coefficient in a liquid-rocket combustion chamber have been analytically determined from an analysis of experimental diffusion data obtained in a small rocket engine which operated at 300-psia chamber pressure and produced approximately 250 pounds thrust. Results of gas-sample measurements obtained by Orsat and gas-chromatograph techniques to determine helium-concentration profiles were analyzed on the basis of Taylor's (1921) turbulent diffusion theory to obtain turbulence flow-field parameters. The results of the analysis indicate that turbulent diffusion in a combustion chamber can be adequately modeled by the one-dimensional Taylor theory, which assumes that the intensity of turbulence is a function only of axial distance in the chamber and that the Lagrangian correlation coefficient is expressed by a power law. The results indicate a higher intensity of turbulence and lower correlation than previously expected.
Document ID
19750063738
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Smith, L. O., Jr.
(Chrysler Corp. New Orleans, La., United States)
Partus, F. P.
(Western Electric Co., Inc. Atlanta, Ga., United States)
Ohara, J. C.
(Tulane University New Orleans, La., United States)
Date Acquired
August 8, 2013
Publication Date
October 1, 1975
Publication Information
Publication: Combustion and Flame
Volume: 25
Subject Category
Spacecraft Propulsion And Power
Accession Number
75A47810
Funding Number(s)
CONTRACT_GRANT: NGR-19-002-030
Distribution Limits
Public
Copyright
Other

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