Study of Impingement Heat Transfer with Rough Surfaces.
Abstract
The effects of surface roughness on impingement cooling of a gas turbine blade were determined experimentally. The study was conducted in a heated flow two-dimensional cascade tunnel. Results showed that roughening of the impingement surfaces decreased the cooling effectiveness from that of a smooth surface in an optimal cooling configuration. However, the roughened surfaces increased the cooling effectiveness over that of a smooth surface in a nonoptimal configuration. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1975
- Accession Number
- ADA022617
Entities
People
- E. Mcfarland
- Widen Tabakoff
Organizations
- University of Cincinnati