Measurements near Bluff Bodies in Turbulent Boundary Layers Intended to Simulate Atmospheric Surface Layers.
Abstract
A relatively new counter-jet technique is shown to be suitable for producing thick turbulent boundary layers which may be used to simulate neutral atmospheric surface layers in wind tunnels of moderate length. The increased thickness is achieved by providing large momentum defects at the wall through upstream-oriented, spanwise-discrete wall jets, with changeable jet velocities and controllable jet angles. This technique permits rapid alteration of reproducible boundary layers from outside the tunnel while the experiments are in progress. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1974
- Accession Number
- AD0782090
Entities
People
- Hassan M. Nagib
- Jimmy Tan-atichat
Organizations
- Illinois Institute of Technology