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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2011, Volume 52, Issue 3, Pages 81–91
(Mi pmtf1484)
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Controlling the level of the sonic boom generated by a flying vehicle by means of cryogenic forcing. 3. Physical justification of the cryogenic action
V. M. Fomin, V. F. Chirkashenko, V. F. Volkov, A. M. Kharitonov Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
Abstract:
The influence of the basic factors of cryogenic forcing on formation of the middle zone on the sonic boom and aerodynamic characteristics of the flying vehicle is studied by experimental and numerical methods. Experimental data obtained with alcohol or liquid nitrogen as an injected liquid are used for comparisons; as a result, the total effect of temperature and coolant evaporation can be determined. The influence of temperature is studied by means of numerical simulations of the cryogenic action of distributed injection of air. A comparison of numerical and experimental data reveals the effect of the coolant evaporation process on perturbed flow formation. It is demonstrated that evaporation of the coolant outgoing onto the vehicle surface should be intensified to increase the efficiency of cryogenic forcing (to decrease the coolant flow rate).
Keywords:
supersonic transport, sonic boom, bow shock wave, coolant injection, flow structure.
Received: 23.04.2010
Citation:
V. M. Fomin, V. F. Chirkashenko, V. F. Volkov, A. M. Kharitonov, “Controlling the level of the sonic boom generated by a flying vehicle by means of cryogenic forcing. 3. Physical justification of the cryogenic action”, Prikl. Mekh. Tekh. Fiz., 52:3 (2011), 81–91; J. Appl. Mech. Tech. Phys., 52:3 (2011), 397–405
Linking options:
https://www.mathnet.ru/eng/pmtf1484 https://www.mathnet.ru/eng/pmtf/v52/i3/p81
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Abstract page: | 43 | Full-text PDF : | 27 |
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