Calculation of The Vehicle Drag and Heating Reduction at Hypervelocities with Laser-Induced Air Spike

Rêgo, Israel da Silveira; Toro, Paulo Gilberto de Paula; Minucci, Marco Antonio Sala; Chanes Júnior, José Brosler; Costa, Felipe Jean da; Oliveira, Antonio Carlos de

doi:10.5028/jatm.v5i1.180

ABSTRACT:

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.

KEYWORDS:
Laser; Flow control; Hypersonic; Rayleigh flow

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REFERENCES

Anderson J.D., 2007, "Introduction to Flight", 6th edition, Science Engineering & Math, pp. 257-263.
Anderson J.D., 2003, "Modern Compressible Flow: With Historical Perspective", 3rd edition, McGraw-Hill, pp. 102-111.
Heiser, W.H. and Pratt, D.T., 1994, "Hypersonic Airbreathing Propulsion", 5th edition, AIAA Education Series, pp. 1-27.
Minucci M.A.S. et al., 2000, "Experimental Investigation of an Electric Arc Simulated "Air-Spike" in Hypersonic Flow", AIAA paper 00-0715, 38^th Aerospace Sciences Meeting & Exhibit, Reno.
Minucci M.A.S. et al., 2005, "Laser-Supported Directed-Energy 'Air Spike' in Hypersonic Flow", Journal of Spacecraft and Rockets, Vol. 42, No. 1, pp. 51-57.
Myrabo L.N. and Lewis J., 2009, "Lightcraft Flight Handbook: LTI-20", Apogee Books, pp. 49-66.
Myrabo L.N. and Raizer Y.P., 1994, "Laser Induced Air-spike for Advanced Transatmospheric Vehicles", AIAA paper 94-2451, 25^th AIAA Plasmadynamics and Laser Conference, Colorado.
Oliveira A.C., 2008, "Investigação Experimental da Adição de Energia por Laser em Escoamento Hipersônico de Baixa Densidade", PhD Thesis (in Portuguese), INPE, São José dos Campos.
Oliveira A.C. et al., 2008, "Bow Shock Wave Mitigation by Laser-Plasma Energy Addition in Hypersonic Flow", Journal of Spacecraft and Rockets, Vol. 45, No. 5, pp. 921-927.
Salvador I.I. et al., 2006, "Experimental Analysis of Heat Flux to a Blunt Body in Hypersonic Flow with Upstream Laser Energy Deposition - Preliminary Results", 4^th International Symposium on Beamed Energy Propulsion, AIP Conference Proceedings, Vol. 830, pp. 163-171.
Siegman A.E., 1986, "Lasers", 1st edition, University Science Books, pp. 663-679.
Toro, P.G.P., 1998, "Experimental Pressure and Heat Transfer Investigation over a Directed-Energy Air Spike Inlet at Flow Mach Number of 10 to 20, Stagnation Temperature of 1000K, with Arc Power up to 127 kW", PhD Thesis, Rensselaer Polytechnic Institute, Troy.

Publication Dates

Publication in this collection
Jan-Mar 2013

History

Received
03 Sept 2012
Accepted
27 Nov 2012

This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

[1] Anderson J.D., 2007, "Introduction to Flight", 6th edition, Science Engineering & Math, pp. 257-263.

[2] Anderson J.D., 2003, "Modern Compressible Flow: With Historical Perspective", 3rd edition, McGraw-Hill, pp. 102-111.

[3] Heiser, W.H. and Pratt, D.T., 1994, "Hypersonic Airbreathing Propulsion", 5th edition, AIAA Education Series, pp. 1-27.

[4] Minucci M.A.S. et al., 2000, "Experimental Investigation of an Electric Arc Simulated "Air-Spike" in Hypersonic Flow", AIAA paper 00-0715, 38^th Aerospace Sciences Meeting & Exhibit, Reno.

[5] Minucci M.A.S. et al., 2005, "Laser-Supported Directed-Energy 'Air Spike' in Hypersonic Flow", Journal of Spacecraft and Rockets, Vol. 42, No. 1, pp. 51-57.

[6] Myrabo L.N. and Lewis J., 2009, "Lightcraft Flight Handbook: LTI-20", Apogee Books, pp. 49-66.

[7] Myrabo L.N. and Raizer Y.P., 1994, "Laser Induced Air-spike for Advanced Transatmospheric Vehicles", AIAA paper 94-2451, 25^th AIAA Plasmadynamics and Laser Conference, Colorado.

[8] Oliveira A.C., 2008, "Investigação Experimental da Adição de Energia por Laser em Escoamento Hipersônico de Baixa Densidade", PhD Thesis (in Portuguese), INPE, São José dos Campos.

[9] Oliveira A.C. et al., 2008, "Bow Shock Wave Mitigation by Laser-Plasma Energy Addition in Hypersonic Flow", Journal of Spacecraft and Rockets, Vol. 45, No. 5, pp. 921-927.

[10] Salvador I.I. et al., 2006, "Experimental Analysis of Heat Flux to a Blunt Body in Hypersonic Flow with Upstream Laser Energy Deposition - Preliminary Results", 4^th International Symposium on Beamed Energy Propulsion, AIP Conference Proceedings, Vol. 830, pp. 163-171.

[11] Siegman A.E., 1986, "Lasers", 1st edition, University Science Books, pp. 663-679.

[12] Toro, P.G.P., 1998, "Experimental Pressure and Heat Transfer Investigation over a Directed-Energy Air Spike Inlet at Flow Mach Number of 10 to 20, Stagnation Temperature of 1000K, with Arc Power up to 127 kW", PhD Thesis, Rensselaer Polytechnic Institute, Troy.