Calculation of the Vehicle Drag and Heating Reduction at Hypervelocites with Laser-Induced Air Spike

Authors

  • Israel da Silveira Rêgo Universidade Federal do ABC/Santo André/SP
  • Paulo Gilberto de Paula Toro Institudo de Estudos Avançados/São José dos Campos/SP
  • Marco Antonio Sala Minucci VALE Soluções em Energia//São José dos Campos/SP
  • José Brosler Chanes Júnior Institudo de Estudos Avançados/São José dos Campos/SP
  • Felipe Jean da Costa Institudo Tecnológico de Aeronáutica/São José dos Campos/SP
  • Antonio Carlos de Oliveira Institudo de Estudos Avançados/São José dos Campos/SP

Keywords:

Laser, Flow control, Hypersonic, Rayleigh flow

Abstract

http://dx.doi.org/10.5028/jatm.v5i1.180

Scientists at the laboratory of Força Aérea Brasileira (FAB) have demonstrated experimentally that laser-induced "air spikes" (DEAS) may reduce effectively both total vehicle drag and heating at hypervelocities. Now, we apply the Rayleigh flow to directly determine the degree of reduction in vehicle drag and convective heat flux into the airframe of a hypersonic blunt-body when laser energy is added upstream of the flight path. Our numerical findings are in accordance with the physical trends observed in our previous hypersonic laser-induced DEAS experiments.


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Published

2013-03-02

Issue

Vol. 5 No. 1 (2013): Jan./Mar.2013

Section

Original Papers

License

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