Abstract
A method of possible diagnostics of supersonic flows around a blunt body and its aerodynamic characteristics by means of a thin channel of reduced density emerging in front of the bow shock wave is discussed. The channel was placed parallel to the body axis or inclined to it. Under the conditions of initially uniform pressure the temperature in the channel (“the hot spike”) is higher than that of the environment. A thin hot spike, which as its limit is infinitely thin, results in the formation of a precursory disturbance in front of the bow shock wave. The length of the precursor is comparable with the characteristic length, that is, the cross section of the blunt body. The hot spike when localized parallel to the body axis and not in line with it yields turning and deviating moments, a lift force was generated even for a symmetric blunt body. Possible applications of this effect are, for example, a change of the trajectory of a small asteroid by means of using the hot spike.
Similar content being viewed by others
References
Artem'ev VI, Markovich IE, Nemchinov IV, Sulyaev VA (1987) Two-dimensional, self-similar motion of a strong shock wave along a heated surface. Sov Phys Dokl 32:245
Artem'ev VI, Bergel'son VI, Nemchinov IV, Orlova TI et al. (1989a) Formation of new gasdynamic structures by the interaction of thin channels of reduced density with the shock waves. In mathematical modelling, part 8:1 (in Russian)
Artem'ev VI, Bergel'son VI, Nemchinov IV, Orlova TI et al. (1989b) Change of regime in supersonic flow past an obstacle preceded by a thin channel of reduced density. Sov Fluid Dynamics 5:779
Artem'ev VI, Bergel'son VI, Nemchinov IV et al. (1990) “Hot spike” ahead of blunt objects in supersonic flow. Sov Phys Dokl 35:20
Artem'ev VI, Bergel'son VI, Nemchinov IV, Orlova TI et al. (1991) Global reconstruction of gasdynamic flows using thin laser beams. Bulletin of the Academy of Sciences of the USSR, Physical Series 55:137
Bergel'son VI, Nemchinov IV, Orlova TI, Smirnov VA et al. (1987) Self-similar development of a precursor in front of a shock wave interacting with a thermal layer. Sov Phys Dokl 32:691
Boris J, Book D (1973) Flux-corrected transport ISHASTA. A fluid transport algorithm that works. Journal of Computational Physics 11:38
Georgievski PJu, Levin VA (1988) Supersonic flow over bodies in the presence of external sources of heat release. Pis'ma Zh Tekh Fiz 14:684
Glasstone S, Dolan PJ (1977) The effects of nuclear weapons, 3rd ed. US Dep of Defines and US Dep of Energy, US Government Print Office, Washington, D.C.
Kozik EA, Loseva TV, Nemchinov IV, Novikova VV (1978) Supersonic radiation waves propagating from a target toward the source of CO2 laser radiation. Sov J Quantum Electron 8:1206
Loseva TV, Nemchinov IV (1982) Subsonic radiation waves. Comparison of the theory with experiment. Sov J Quantum Electron 12:872
Mark H (1957) The interaction of a reflected shock with the boundary layer in a shock channel. J Aeronaut Sci 24:304
Maurer F, Brungs W (1968) Beeinflussung des Widerstands und der Kopfwelle durch Wärmezufuhr im Staupunktsbereich stumpfer Körper bei Überschallanströmung. Jahrbuch der Deutchen Gesellschaft für Luft- und Raumfahrt e.v. (DGLR), Köln, pp 174–189
Melosh HJ (1989) Impact cratering: a geologic process. Oxford University Press Clarendon Press Oxford, p 245
Mirels H (1988) Interaction of moving shock with thin stationary thermal layer. In: Grönig H (ed) Shock channels and Waves. VCH, Weinheim, New York, pp 177–183
Nemchinov IV (1981) Absorption waves in gases. Bulletin of Academy of Science of the USSR, Physical series 46:1026
Nemchinov IV, Khazins VM (1989) Limits of existence of optical detonation maintained by short-wave length monochromatic radiation. Sov J Quantum Electronic 16:79
Nemchinov IV, Popov SP, Teterev AV (1993) Tsunamis caused by the impact of cosmic bodies into oceans and seas. Conf Harvards due to asteroids and comets, Tucson, Arizona, p 64 (abstract)
Raizer YuP (1977) Laser-induced discharge phenomena. Consultants Bureau 4
Taganov GI (1968) Some problems in the hydrodynamics of jet flows. In: Abstracts of the proceedings of the third all-union congress on theoretical and applied mechanics. Nauka, Moscow, p 289 (Russian)
Author information
Authors and Affiliations
Additional information
This article was processed using Springer-Verlag TEX Shock Waves macro package 1.0 and the AMS fonts, developed by the American Mathematical Society.
Rights and permissions
About this article
Cite this article
Nemchinov, I.V., Artem'ev, V.I., Bergelson, V.I. et al. Rearrangement of the bow shock shape using a “hot spike”. Shock Waves 4, 35–40 (1994). https://doi.org/10.1007/BF01414630
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01414630