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Effects of Shock-Tube Cleanliness on Slender-Body Hypersonic Instability and Transition Studies at High-Enthalpy

Parziale, N. J. and Jewell, J. S. and Leyva, I. A. and Shepherd, J. E. (2015) Effects of Shock-Tube Cleanliness on Slender-Body Hypersonic Instability and Transition Studies at High-Enthalpy. In: AIAA SciTech : 53rd AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics , Reston, VA, Art. No. 2015-1786. ISBN 9781624103438. https://resolver.caltech.edu/CaltechAUTHORS:20190816-144340522

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Abstract

A series of slender-body hypervelocity boundary-layer instability and transition experiments were performed in the Caltech T5 Reflected-Shock Tunnel. During this campaign, it became clear that the condition of the T5 shock tube would significantly affect the consistency of the instability and transition measurements; a regimen of cleaning was iterated on until satisfactory repeatability was achieved. In this work, a description of the cleaning regimen is given. Additionally, boundary-layer instability measurements and a statistical analysis of the boundary-layer transition scatter are presented for experiments before and after cleaning regimen implementation.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.2514/6.2015-1786DOIArticle
ORCID:
AuthorORCID
Parziale, N. J.0000-0001-9880-1727
Jewell, J. S.0000-0002-4047-9998
Shepherd, J. E.0000-0003-3181-9310
Additional Information:© 2015 American Institute of Aeronautics and Astronautics. The authors would like to thank Bahram Valiferdowsi for help running T5 and Ross Wagnild for help with the program to compute the run conditions. This work was an activity that was part of National Center for Hypersonic Laminar-Turbulent Research, sponsored by the “Integrated Theoretical, Computational, and Experimental Studies for Transition Estimation and Control” project, supported by the U.S. Air Force Office of Scientific Research and the National Aeronautics and Space Administration (FA9552-09-1-0341). Additionally, this work was part of the “Transition Delay in Hypervelocity Boundary Layers by Means of CO_2/Acoustic Interactions” project, sponsored by the Air Force Office of Scientific Research (FA9550-10-1-0491). J. S. Jewell received additional support from the National Defense Science and Engineering Graduate Fellowship and the Jack Kent Cooke Foundation.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9552-09-1-0341
NASAUNSPECIFIED
Air Force Office of Scientific Research (AFOSR)FA9550-10-1-0491
National Defense Science and Engineering Graduate (NDSEG) FellowshipUNSPECIFIED
Jack Kent Cooke FoundationUNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
AIAA Paper2015-1786
Record Number:CaltechAUTHORS:20190816-144340522
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190816-144340522
Official Citation:Effects of Shock-Tube Cleanliness on Slender-Body Hypersonic Instability and Transition Studies at High-Enthalpy Nick J. Parziale, Joseph S. Jewell, Ivett A. Leyva, and Joseph Shepherd 53rd AIAA Aerospace Sciences Meeting. 10.2514/6.2015-1786
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97966
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:22 Aug 2019 19:43
Last Modified:03 Oct 2019 21:36

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