NDLI: Full-scale wind-tunnel investigation of wing cooling ducts, special report

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Full-scale wind-tunnel investigation of wing cooling ducts, special report

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1938
Description	The systematic investigation of wing cooling ducts at the NACA laboratory has been continued with tests in the full-scale wind tunnel on ducts of finite span. These results extend the previous investigation on section characteristics of ducts to higher Reynolds numbers and indicate the losses due to the duct ends. The data include comparisons between ducts completely within the ring and the conventional underslung ducts. Methods of flow regulation were studied and data were obtained for a wide range of internal duct resistance. The results show satisfactory correlation between the finite span and the previously measured section characteristics obtained with full-span ducts. The effects of the various design parameters on the duct characteristics are discussed. The cooling power required for the internal duct installation is shown to be only a small percentage of the engine power.
File Size	3449744
Page Count	71
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20090015089
Archival Resource Key	ark:/13960/t54f5061z
Language	English
Publisher Date	1938-01-01
Access Restriction	Open
Subject Keyword	Aircraft Design, Testing And Performance 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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