Unsteady and Separated Flows
Abstract
A computer controlled system for the X- carriage on the Tow Tank has been installed. A force balance for measuring dynamic forces on models carried by the carriage has been built and installed. Initial measurements of such forces have been obtained on a flat-plate airfoil at various angles of attack. Optical and computer components have been assembled and integrated into a system for acquiring and processing streakline images of fluorescent particles in flow fields in water. Water-tunnel experiments on a Liebeck airfoil showed that a large cavity on the upper surface (to establish a free shear layer along the pressure plateau) promotes reattachment into the adverse pressure gradient and delays stall. Unsteady flow; Separated flow; Vortex interaction; Flow control.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 30, 1988
- Accession Number
- ADA206539
Entities
People
- A. Léonard
- A. Roshko
- P. E. Dimotakis
Organizations
- California Institute of Technology