Experimental Turbulent Viscosities for Swirling Flow in a Stationary Annulus
Abstract
An important feature of many flows encountered in practice (such as inturbomachinery) is the fact that the streamlines may be curved, thereby introducing a pressure gradient in the direction perpendicular to the main flow direction. The purpose of the present research is to isolate the effects of curvature (swirl) on the turbulence and hence the transport properties. The experimental effort is concerned with mapping out the details of the developing axial and decaying tangential velocity fields using isothermal air as the working fluid in an annulus with a single diameter ratio (di/do) = 0.4) and at a single bulk Reynolds number of 130,000. Interest is centered on a critical discussion of the data reduction techniques for obtaining the radial variations of the axial and tangential momentum diffusivities.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1971
- Accession Number
- AD0742722
Entities
People
- Charles J. Scott
- Dean R. Rask
Organizations
- University of Minnesota