Accession Number : AD1028247


Title :   Hypervelocity Expansion Facility for Fundamental High-Enthalpy Research


Descriptive Note : Technical Report,01 Jun 2015,30 Nov 2016


Corporate Author : Texas A and M University College Station United States


Personal Author(s) : Bowersox,Rodney D ; White,Edward B ; North,Simon W ; Marcotte,Evan K ; Aguilar,Gabe J ; Pages,Alex E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1028247.pdf


Report Date : 27 Feb 2017


Pagination or Media Count : 89


Abstract : The objective for this project is to provide a clean air venue for basic research in high enthalpy,high Reynolds number transitional and turbulent boundary layer flow, which aligns with Navy interests in hypersonic vehicle systems. To meet this goal, we developed and installed a relatively large-scale hypervelocity expansion tunnel (HXT) into the National Aerothermochemistry and Hypersonics Laboratory (NAL) at Texas A and M University. This venue leverages previous DoD investments in high-energy pulsed laser diagnostics for instantaneous planar velocimetry and thermometry to perform scientific studies of high temperature hypersonic boundary layers. The combination of the expansion tunnel facility with our signature laser diagnostics will provide a capability for fundamental and applied studies of hypervelocity high enthalpy flows. In this document, we report on the progress over the 18-month period of performance. The project progressed as planned, where the expansion tube was designed (flow path and mechanical), constructed, installed, instrumented for shock speed, and a preliminary shake-down test was performed.


Descriptors :   boundary layer , computational fluid dynamics , hypervelocity flow , Reynolds number , enthalpy , hypersonics , shock tunnels


Subject Categories : Fluid Mechanics
      Test Facilities, Equipment and Methods


Distribution Statement : APPROVED FOR PUBLIC RELEASE