An experimental study was conducted to investigate the drag reduction by laser‐plasma energy addition in a low density Mach 7 hypersonic flow. The experiments were conducted in a shock tunnel and the optical beam of a high power pulsed CO 2 TEA laser operating with 7 J of energy and 30 MW peak power was focused to generate the plasma upstream of a hemispherical model installed in the tunnel test section. The non‐intrusive schlieren optical technique was used to visualize the effects of the energy addition to hypersonic flow, from the plasma generation until the mitigation of the shock wave profile over the model surface. Aside the optical technique, a piezoelectric pressure transducer was used to measure the impact pressure at stagnation point of the hemispherical model and the pressure reduction could be observed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Drag Reduction by Laser‐Plasma Energy Addition in Hypersonic Flow


    Contributors:

    Conference:

    BEAMED ENERGY PROPULSION: Fifth International Symposium on Beamed Energy Propulsion ; 2007 ; Kailua‐Kona (Hawaii)


    Published in:

    AIP Conference Proceedings ; 997 , 1 ; 379-389


    Publication date :

    2008-04-28


    Size :

    11 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Drag Reduction by Laser-plasma Energy Addition in Hypersonic Flow

    Oliveira, A.C. / Minucci, M.A.S. / Toro, P.G.P. et al. | British Library Conference Proceedings | 2008


    Hypersonic flow drag reduction structure

    JIA YAO / WANG GANG / ZHU KE et al. | European Patent Office | 2024

    Free access

    Turbulence in Plasma-Induced Hypersonic Drag Reduction

    R. Appartaim / E.-D. Mezonlin / J. A. Johnson | AIAA | 2002


    Turbulence in plasma-induced hypersonic drag reduction

    Appartaim, R. / Mezonlin, E.-D. / Johnson, III, J. | AIAA | 2001


    Aerospike for Drag Reduction in Hypersonic Flow

    Kalimuthu, Raman / Rathakrishnan, Ethirajan | AIAA | 2008