Shock Waves pp 191-196 | Cite as

Power law shapes for leading-edge blunting with minimal standoff distance in low-density hypersonic flow

  • W. F. N. Santos
Conference paper


The steady-state aerodynamic characteristics of power law shaped leading edges immersed in high-speed rarefied air flow are examined by using a Direct Simulation Monte Carlo method. The work is motivated by interest in investigating power-law shaped leading edges as possible candidates for blunting geometries of hypersonic configurations. The aerodynamic performance of power law shapes is compared to a corresponding round leading edge shape based on equivalent shock standoff distance. For the flow conditions considered, the analysis shows that round leading edges provide smaller stagnation point heating and smaller drag than power law shapes for equivalent shock standoff distance.


Standoff Distance Direct Simulation Monte Carlo Hypersonic Flow Nose Radius Direct Simulation Monte Carlo Method 
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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • W. F. N. Santos
    • 1
  1. 1.Combustion and Propulsion LaboratoryNational Institute for Space ResearchCachoeira Paulista, SPBrazil

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