Title from cover. Final technical report. 1 Jan 2001-30 Jun 2004. Includes bibliographical references: leaves 85-92. "AFOSR Grant F49620-01-1-0113, Report ISU-MEP-CFD-0904." "September 29, 2004." "Dates covered January 2001-30 June 2004"--Report documentation page.
Summary:
The primary objective of this research was to develop and apply large eddy simulation (LES) technology to some urgent flow and heat transfer problems in propulsion systems and to contribute to the physical understanding of such flows. The work was motivated by the observation that the design goals of high specific power and thrust and low specific fuel consumption have been reached, in part, by an increase in turbine inlet temperature and future improvements in engine efficiency will place even greater demands on blade cooling procedures. However, current design codes are somewhat limited in accuracy due to uncertainty associated with modeling for turbulent flow. The research was concerned with both the film cooling of external blade surfaces and the complex flows in internal cooling passages. Studies have been completed of the effects of rotation on the heat transfer and flow in smooth and ribbed channels and in a duct of square cross-section. A scheme was developed for including the effects of freestream turbulence on boundary layer development. Preliminary LES results have been obtained for a single hole film cooling configuration.
OCLC:
(OCoLC)946722713
Locations:
USUX851 -- Iowa State University - Parks Library (Ames)
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.