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A root-mean-square pressure fluctuations model for internal flow applications
- Publication Year :
- 1985
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1985.
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Abstract
- A transport equation for the root-mean-square pressure fluctuations of turbulent flow is derived from the time-dependent momentum equation for incompressible flow. Approximate modeling of this transport equation is included to relate terms with higher order correlations to the mean quantities of turbulent flow. Three empirical constants are introduced in the model. Two of the empirical constants are estimated from homogeneous turbulence data and wall pressure fluctuations measurements. The third constant is determined by comparing the results of large eddy simulations for a plane channel flow and an annulus flow.
- Subjects :
- Fluid Mechanics And Heat Transfer
Subjects
Details
- Language :
- English
- Database :
- NASA Technical Reports
- Notes :
- NAS8-35918
- Publication Type :
- Report
- Accession number :
- edsnas.19860000993
- Document Type :
- Report