Jet Turbulence Dissipation Rate Measurements and Correlations,
Abstract
The rate of viscous dissipation in a turbulent jet is examined in some detail. A correlation of the mean rate of dissipation on the center-line in terms of the orifice Reynolds number and axial position is established. Measurements of the velocity and velocity derivative are described for a jet with an orifice Reynolds number of 120000. The spectrum of the square of the velocity derivative was examined for similarity to those obtained for atmospheric boundary layer flows at very large Reynolds numbers when normalized with Kolmogoroff length and time scales. Spectra of higher order moments of the velocity derivative are also presented and compared to Novikov's predictions of the power law subranges. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 29, 1971
- Accession Number
- AD0732272
Entities
People
- C. W. Van Atta
- Carl A. Friehe
- Carl H. Gibson
Organizations
- University of California, San Diego