A comprehensive investigation of the use of low-angled jets to control the aerodynamic forces, viscous drag, and heat transfer for hypersonic vehicles was performed. The research program was divided into two thrusts. The first thrust involved construction of a new experimental hypersonic research laboratory. The laboratory houses two wind tunnels (a Mach 5.0 blow-down and a Mach 7.0 shock tunnel) developed as part of this project. The second thrust concentrated on examining the flow features of sonic injection into a hypersonic (Mach 5.0), high-Reynolds number (Re/m = 55 x 10(exp 6)) cross-flow for flow field understanding, predictability, and controllability. With this understanding, improved variable wall plume control devices can be developed to increase the film cooling and boundary layer control effectiveness of the jets. The use of a distributed-array of multiple jets for thermal protection and separation control was also investigated. A two-year program was performed.


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    Title :

    Investigation of Combined Low-Angled Jets and Variable Wall Geometry for Hypersonic Aerodynamic Control


    Contributors:
    R. D. Bowersox (author) / H. Fan (author)

    Publication date :

    2000


    Size :

    119 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English