Show simple item record

NACA-TN-2972

Theoretical pressure distributions and wave drags for conical boattails

contributor authorNASA - National Aeronautics and Space Administration (NASA)
date accessioned2017-09-04T18:29:04Z
date available2017-09-04T18:29:04Z
date copyright01/01/1953
date issued1953
identifier otherISNUYDAAAAAAAAAA.pdf
identifier urihttp://yse.yabesh.ir/std;query=autho1216AF679D/handle/yse/211289
description abstractAfterbody pressure distributions and wave drag were calculated using a second-order theory for a variety of conical boattails at zero angle of attack. Results are presented for Mach numbers from 1.5 to 4.5, area ratios from 0.200 to 0.800, and boattail angle from 3 degrees to 11 degrees. The results indicate that for a given boattail angle, the wave drag decreases with increasing Mach number and area ratio. The wave drag, for a constant area ratio, increases with increasing boattail angle. For a specific Mach number, area ratio, and fineness ratio, a comparison of the wave-drag coefficients for conical, tangent-parabolic, and secant-parabolic boattails showed the conical boattail to have the smallest wave drag.
languageEnglish
titleNACA-TN-2972num
titleTheoretical pressure distributions and wave drags for conical boattailsen
typestandard
page15
statusActive
treeNASA - National Aeronautics and Space Administration (NASA):;1953
contenttypefulltext
subject keywordsAERODYNAMIC
subject keywordsAFTERBODIES
subject keywordsANGLE
subject keywordsATTACK
subject keywordsBOATTAILS
subject keywordsBODIES
subject keywordsCOMPUTATION
subject keywordsCONICAL
subject keywordsDISTRIBUTION
subject keywordsDRAG
subject keywordsDUCTED
subject keywordsFINENESS
subject keywordsLOADS
subject keywordsMACH
subject keywordsNUMBER
subject keywordsPRESSURE
subject keywordsRATIO
subject keywordsREDUCTION
subject keywordsWAVE
subject keywordsZERO


Files in this item

Thumbnail
Name:
ISNUYDAAAAAAAAAA.pdf
Size:
266.0Kb
Format:
PDF
View/Open

This item appears in the following Collection(s)

Show simple item record