NDLI: Instrumentation Technique for Mixed Hypersonic Flow in Short Duration Facility

Content Provider	IEEE Xplore Digital Library
Author	Pandian, S. Raveendran, P.G. Srinivasan, K. Subramanian, S. Subash, A.N.
Copyright Year	2005
Description	Author affiliation: Vikram Sarabhai Space Centre (VSSC), Indian Space Research Organisation, Thiruvananthapuram-695 022, INDIA. Email: s_pandian@vssc.org (Pandian, S.)
Abstract	At hypersonic Mach numbers, the separated boundary layer from the model base develops as a shear layer and separates the outer in-viscid hypersonic flow from low subsonic flow in the base region. Characterizing such a complex mixed hypersonic flow of the base region in a short duration facility needs adequate runtime since base flow itself takes few milliseconds to establish as well as fast response sensors and instrumentation. In the present study fast response sensors are developed and time taken to establish base flow on a typical blunt body is calculated. These experiments were carried out in a shock tunnel at free stream Mach number of 6 and free stream Reynolds number of 0.2 million. To gain additional confidence on the base heat transfer distribution, steady pressure measurements were also carried out in a conventional hypersonic wind tunnel. The studies indicate that for the above test conditions, the heat transfer and pressure distribution on the blunt body base plane is nearly uniform. The time required for the base flow establishment is 1.27 milli seconds.
Starting Page	342
Ending Page	347
File Size	4983829
Page Count	6
File Format	PDF
ISBN	0780390962
DOI	10.1109/ICIASF.2005.1569942
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-08-29
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Instruments Heat transfer Electric shock Fluid flow measurement Pressure measurement Testing Time measurement Sensor phenomena and characterization Temperature Neck heat transfer rate Base flow Flow establishment time
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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