Numerical studies on Hypersonic Waveriders

EasyChair Preprint 1844

Abstract

In the history books, aviation has always been driven by the philosophy of “faster and higher”, right from the start of the Wright brothers’ sea level flights at 15.7 m/s in 1903, and progressing exponentially to the manned space flight mission of 1960s and 1970s. The efficient high speed flight vehicles need flow elements whether it is supersonic or hypersonic so that new aerodynamic design concepts can be developed. In supersonic and hypersonic flow, most of the research is going on about how the shock wave is formed at the leading edge of the lifting body. The challenging task is to control the bow shock wave formed at the leading edge and to find compatible body surfaces. Waveriders are classical examples which can minimize this challenge by suitably increasing the lift to drag ratio. The waveriders are supersonic or hypersonic vehicles in which a shock wave is attached along its leading edge which will limit the leakage of the flow from lower to upper surface thus increasing the lift to drag ratio for any design. A low L/D ratio will result in increase in requirement of fuel and thus a good L/D ratio is important. The design of a waverider is associated with aerodynamic efficiency, Mach number, volume and lateral stability. It is viewed schematic flight vehicle. Various numerical simulations are done at various positive as well as negative angle of attack to calculate the Mach number and also to observe the flow pattern.

Keyphrases: Mach number, Supersonic, angle of attack, hypersonic, shock wave, waveriders

@booklet{EasyChair:1844,
  author    = {Swaraj Singh and Vivek Kumar and Jayanta Sinha},
  title     = {Numerical studies on Hypersonic Waveriders},
  howpublished = {EasyChair Preprint 1844},
  year      = {EasyChair, 2019}}