NDLI: Sonic boom computations for a mach 1.6 cruise low boom configuration and comparisons with wind tunnel data

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Sonic boom computations for a mach 1.6 cruise low boom configuration and comparisons with wind tunnel data

Content Provider	NASA Technical Reports Server (NTRS)
Author	Wilcox, Floyd Aftosmis, Michael J. Parlette, Edward Elmiligui, Alaa A. Cliff, Susan E. Bangert, Linda Nemec, Marian
Copyright Year	2011
Description	Accurate analysis of sonic boom pressure signatures using computational fluid dynamics techniques remains quite challenging. Although CFD shows accurate predictions of flow around complex configurations, generating grids that can resolve the sonic boom signature far away from the body is a challenge. The test case chosen for this study corresponds to an experimental wind-tunnel test that was conducted to measure the sonic boom pressure signature of a low boom configuration designed by Gulfstream Aerospace Corporation. Two widely used NASA codes, USM3D and AERO, are examined for their ability to accurately capture sonic boom signature. Numerical simulations are conducted for a free-stream Mach number of 1.6, angle of attack of 0.3 and Reynolds number of 3.85x10(exp 6) based on model reference length. Flow around the low boom configuration in free air and inside the Langley Unitary plan wind tunnel are computed. Results from the numerical simulations are compared with wind tunnel data. The effects of viscous and turbulence modeling along with tunnel walls on the computed sonic boom signature are presented and discussed.
File Size	10489020
Page Count	27
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110013686
Archival Resource Key	ark:/13960/t6xw9dk4q
Language	English
Publisher Date	2011-06-27
Access Restriction	Open
Subject Keyword	Aerodynamics Wind Tunnels Supersonic Speed Computational Fluid Dynamics Turbulence Models Reynolds Number Wind Tunnel Tests Sonic Booms Free Flow Aircraft Configurations Mach Number Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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