JOINT PROBABILITY DENSITIES AND QUADRANT CONTRIBUTIONS IN A HEATED TURBULENT ROUND JET.

K. R. Sreenivasan, R. A. Antonia

Research output: Contribution to journalArticle

Abstract

Conditional (turbulent) isodensity contours and cross sections of the joint probability density functions of the axial (u) and radial (v) velocity fluctuations, and temperature fluctuations ( theta ) are obtained in a slightly heated round jet with a coflowing external stream. Also obtained are the occupancy times in (u theta quadrants and the quadrant contributions to average fluxes (uv), (u theta ), and (v theta ). Comparison with corresponding quantities of the appropriate bivariate Gaussian density functions shows that departures from Gaussianity are less pronounced for the outward radial motion than for the inward radial motion associated with the possibly newly entrained fluid.

Original languageEnglish (US)
Pages (from-to)867-868
Number of pages2
JournalAIAA Journal
Volume16
Issue number9
StatePublished - Sep 1978

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Probability density function
Fluxes
Fluids
Temperature

ASJC Scopus subject areas

  • Aerospace Engineering

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JOINT PROBABILITY DENSITIES AND QUADRANT CONTRIBUTIONS IN A HEATED TURBULENT ROUND JET. / Sreenivasan, K. R.; Antonia, R. A.

In: AIAA Journal, Vol. 16, No. 9, 09.1978, p. 867-868.

Research output: Contribution to journalArticle

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