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Compilation and Analysis of Second-Mode Amplitudes on Sharp Cones in Hypersonic Wind Tunnels

Marineau, Eric C. and Grossir, Guillaume and Wagner, Alexander and Leinemann, Madlen and Radespiel, Rolf and Tanno, Hideyuki and Wadhams, Tim P. and Chynoweth, B. C. and Schneider, S. P. and Wagnild, Ross M. and Casper, Katya M. (2018) Compilation and Analysis of Second-Mode Amplitudes on Sharp Cones in Hypersonic Wind Tunnels. In: AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting (210059). AIAA. AIAA Science and Technology Forum and Exposition (SciTech 2018), 2018-01-08 - 2018-01-11, Kissimee, Florida USA. doi: 10.2514/6.2018-0349. ISBN ISBN: 978-162410524-1.

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Official URL: https://arc.aiaa.org/doi/10.2514/6.2018-0349

Abstract

This research effort coordinated by the NATO AVT-240 specialists’ group compiles and analyzes second-mode amplitudes on sharp slender cones at 0 degrees angle of attack. The analysis focuses on pressure fluctuations measured with piezoelectric sensors in 11 hypersonic wind tunnels operated by 9 organizations located in 3 NATO countries (Belgium, Germany, and USA) and Japan. The measurements are at freestream Mach numbers between 5 and 14, unit Reynolds numbers Re/m between 1.5 and 16 million per meter, and wall-to total temperature ratios between 0.1 and 0.8. The study shows that second-mode growth rates can be predicted with Parabolized Stability Equations (PSE) over the wide range of conditions. The maximum second-mode amplitudes vary weakly at edge Mach number Me greater than ~5.8, but significantly decrease at lower Me. The maximum N factor envelope from PSE and the measured amplitudes are used to estimate the initial amplitudes A0. At each Mach number, A0 varies approximately as Re/m^(-1). This leads to transition N factors that increase with Re/m. This behavior is consistent with the results from Marineau (AIAA Journal, Vol. 55, No. 2, 2017).

Item URL in elib:https://elib.dlr.de/119053/
Document Type:Conference or Workshop Item (Speech)
Title:Compilation and Analysis of Second-Mode Amplitudes on Sharp Cones in Hypersonic Wind Tunnels
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Marineau, Eric C.California Institute of Technology, Pasadena, CAUNSPECIFIEDUNSPECIFIED
Grossir, Guillaumevon Karman Institute for Fluid Dynamics, Chaussée de Waterloo 72, 1640 Rhode-St-Genèse, BelgiumUNSPECIFIEDUNSPECIFIED
Wagner, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Leinemann, MadlenTU BraunschweigUNSPECIFIEDUNSPECIFIED
Radespiel, RolfTU BraunschweigUNSPECIFIEDUNSPECIFIED
Tanno, HideyukiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wadhams, Tim P.CUBRC, 4455 Genesee Street, Buffalo, NY, 14225UNSPECIFIEDUNSPECIFIED
Chynoweth, B. C.Purdue University, West Lafayette, IN, 47907UNSPECIFIEDUNSPECIFIED
Schneider, S. P.Purdue University, West Lafayette, IN, 47907UNSPECIFIEDUNSPECIFIED
Wagnild, Ross M.Sandia National Laboratories, Albuquerque, New Mexico 87185UNSPECIFIEDUNSPECIFIED
Casper, Katya M.Sandia National Laboratories, Albuquerque, New Mexico 87185UNSPECIFIEDUNSPECIFIED
Date:2018
Journal or Publication Title:AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.2514/6.2018-0349
Publisher:AIAA
ISBN:ISBN: 978-162410524-1
Status:Published
Keywords:hypersonic boundary-layer transition, ultrasonically absorptive coating, porous materials, acoustic absorption, UAT, second mode
Event Title:AIAA Science and Technology Forum and Exposition (SciTech 2018)
Event Location:Kissimee, Florida USA
Event Type:international Conference
Event Start Date:8 January 2018
Event End Date:11 January 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Reusable Space Systems and Propulsion Technology
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Bachmann, Barbara
Deposited On:08 May 2018 14:36
Last Modified:24 Apr 2024 20:23

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