Shock Waves

pp 607-612

Experimental investigation of cowl shape and location on inlet characteristics at hypersonic Mach number

  • D. MahapatraAffiliated withAerospace Engineering Department, Indian Institute of Science
  • , G. JagadeeshAffiliated withAerospace Engineering Department, Indian Institute of Science

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An experimental study is presented to show the effect of the cowl location and shape on the shock interaction phenomena in the inlet region for a 2D, planar scramjet inlet model. Investigations include schlieren visualization around the cowl region and heat transfer rate measurement inside the inlet chamber.Both regular and Mach reflections are observed when the forebody ramp shock reflects from the cowl plate. Mach stem heights of 3.3 mm and 4.1 mm are measured in 18.5 mm and 22.7 mm high inlet chambers respecively. Increased heat transfer rate is measured at the same location of chamber for cowls of longer lenghs is indicating additional mass flow recovery by the inlet.