The influence of large-scale high-intensity turbulence on vane heat transfer
- Allison Engine Co., Indianapolis, IN (United States)
An experimental research program was undertaken to examine the influence of large-scale high-intensity turbulence on vane heat transfer. The experiment was conducted in a four-vane linear cascade at exit Reynolds numbers of 500,000 and 800,000 based on chord length. Heat transfer measurements were made for four inlet turbulence conditions including a low turbulence case (Tu {approx_equal} 1%), a grid turbulence case (Tu {approx_equal} 7.5%), and two levels of large-scale turbulence generated with a mock combustor at two upstream locations (Tu {approx_equal} 12% and 8%). The heat transfer data demonstrated that the length scale, Lu, has a significant effect on stagnation region and pressure surface heat transfer.
- Sponsoring Organization:
- National Aeronautics and Space Administration, Washington, DC (United States)
- OSTI ID:
- 438777
- Report Number(s):
- CONF-950629--
- Journal Information:
- Journal of Turbomachinery, Journal Name: Journal of Turbomachinery Journal Issue: 1 Vol. 119; ISSN JOTUEI; ISSN 0889-504X
- Country of Publication:
- United States
- Language:
- English
Similar Records
CHARACTERIZATION OF CATALYTIC COMBUSTOR TURBULENCE AND ITS INFLUENCE ON VANE AND ENDWALL HEAT TRANSFER AND ENDWALL FILM COOLING
Stagnation Region Heat Transfer Augmentation at Very High Turbulence Levels