Development of a unified heuristic model of Fluid turbulence
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Author
Contributions
- Pritchett, John W. - Contributor
- Naval Postgraduate School (U.S.) - Contributor
Publication
1971 - Naval Postgraduate School, Monterey, California, California
Language
English
Word Count
29,750 words, Guess
Page Count
119 pages
Identifiers
- Internet Archivedevelopmentofuni00gawa
- OCLC Control Number434459424
- Open LibraryOL25510284M
Description
A unified heuristic model of fluid turbulence is proposed which supplements the basic equations of motion and continuity so as to define determinate solutions under a wide variety of conditions. A single set of equations applies to all cases. Only the boundary conditions change for each application. The Reynolds stresses are related to the mean flow heuristically, through an eddy viscosity. This also involves the turbulent energy, which is analyzed with the aid of empirical expressions for dissipation and diffusion. A characteristic local length scale is introduced, based on a generalization of von Karmon's mixing length. The model is illustrated by application to a channel and a jet. Agreement with experiment is noted. The report also includes an original analysis of the stress/strain rate relation. (Author)
Subjects
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