NDLI: Jet model for slot film cooling with effect of free-stream and coolant turbulence

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Jet model for slot film cooling with effect of free-stream and coolant turbulence

Content Provider	NASA Technical Reports Server (NTRS)
Author	Simon, Frederick F.
Copyright Year	1986
Description	An analysis was performed utilizing the model of a wall jet for obtaining equations that will predict slot film-cooling efficiency under conditions of variable turbulence intensity, flow, and temperature. The analysis, in addition to assessing the effects of the above variables, makes a distinction between an initial region and a fully developed region. Such a distinction is important in determining the role that the turbulence intensity of the coolant plays in effecting film-cooling effectiveness in the area of the slot exit. The results of the analysis were used in the correlation of the results of a well-designed film-cooling experiment. The result of the analysis and experiment was equations that predicted film-cooling efficiency within + or - 4% average deviation for lateral free-stream turbulence intensities up to 24% and blowing rates up to 1.9. These equations should be useful in determining the optimum quantity of cooling air requried for protecting the wall of a combustor.
File Size	976092
Page Count	21
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19870008601
Archival Resource Key	ark:/13960/t1xd5s653
Language	English
Publisher Date	1986-10-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Heat Transfer Slots Numerical Analysis Wall Jets Flow Velocity Turbulence Effects Film Cooling Free Flow Prediction Analysis Techniques Jet Engines Turbulent Mixing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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