Recent results from hypervelocity research in T5

H. G. Hornung, E. B. Cummings, P. Germain, S. R. Sanderson, B. Sturtevant, Chih-yung Wen

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)

Abstract

Results are presented from a selection of the graduate research projects that were carried out in the T5 hypervelocity shock tunnel laboratory during the last two years. The projects presented are: 1. Hypervelocity flow over spheres. Differential interferometry and heat transfer measurements are used in air, nitrogen, and carbon dioxide flows to test numerical results and a new stand-off distance correlation. 2. High-enthalpy real-gas effects in boundary layer transition on a slender cone. Heat transfer measurements and resonantly enhanced flow visualization provide new data on the effect of reservoir enthalpy on transition. The effect is quite strongly stabilizing. The visualization shows the structure of high-enthalpy transitional and turbulent boundary layers. 3. Real-gas effects in shock-on-shock interaction. Flow visualization indicates that the range of shock impingement points for which enhanced heating occurs is increased by high-enthalpy real-gas effects. Some flow features are changed qualitatively. 4. A new diagnostics technique: Laser-induced thermal acoustics. This method provides accurate point measurement of the speed of sound, bulk viscosity, and susceptibility of a gas. The experience with T5 over the first 700 runs shows that its operation in a university environment is a cost-effective way of improving the understanding of phenomena in hypervelocity gasdynamics.
Original languageEnglish
Title of host publicationAIAA 25th Plasmadynamics and Lasers Conference, 1994
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Publication statusPublished - 1 Jan 1994
Externally publishedYes
EventAIAA 25th Plasmadynamics and Lasers Conference, 1994 - Colorado Springs, United States
Duration: 20 Jun 199423 Jun 1994

Conference

ConferenceAIAA 25th Plasmadynamics and Lasers Conference, 1994
CountryUnited States
CityColorado Springs
Period20/06/9423/06/94

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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