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Fizika Goreniya i Vzryva, 2010, Volume 46, Issue 5, Pages 112–118 (Mi fgv1232)  
Technical approach to evaluating the loss in rocket motor specific impulse due to discontinuity of the nozzle block contour

Yu. S. Solomonova, Yu. M. Miloekhinb, A. N. Kluchnikovb, G. V. Burskiib, V. S. Popovb

a Moscow Institute of Thermal Technology, Moscow, 127273, Russia
b Soyuz Federal Center for Dual-Use Technologies, Dzerzhinskii, 140090, Russia
Abstract: A methodical approach to evaluating the loss in rocket motor specific impulse due to discontinuity of the contour of the supersonic part of the nozzle block is developed based on calculating the parameters of the nonisentropic flow of combustion products. The increase in entropy is a consequence of flow deflection and the occurrence of oblique shocks in the zone of contour junction. The magnitude of the loss is determined by the energy expended in increasing the entropy when the flow passes through a shock and is obtained using the equation of the Hugoniot adiabat. The loss in specific impulse was calculated for various discontinuity parameters of the nozzle contour of a hypothetical solid rocket motor.
Keywords: expandable nozzle block, contour discontinuity, shocks, loss in specific impulse.
Received: 23.10.2009
English version:
Combustion, Explosion and Shock Waves, 2010, Volume 46, Issue 5, Pages 593–598
DOI: https://doi.org/10.1007/s10573-010-0078-5
Bibliographic databases:
Document Type: Article
UDC: 533.601.18
Language: Russian
Citation: Yu. S. Solomonov, Yu. M. Miloekhin, A. N. Kluchnikov, G. V. Burskii, V. S. Popov, “Technical approach to evaluating the loss in rocket motor specific impulse due to discontinuity of the nozzle block contour”, Fizika Goreniya i Vzryva, 46:5 (2010), 112–118; Combustion, Explosion and Shock Waves, 46:5 (2010), 593–598
Citation in format AMSBIB
\Bibitem{SolMilKlu10}
\by Yu.~S.~Solomonov, Yu.~M.~Miloekhin, A.~N.~Kluchnikov, G.~V.~Burskii, V.~S.~Popov
\paper Technical approach to evaluating the loss in rocket motor specific impulse due to discontinuity of the nozzle block contour
\jour Fizika Goreniya i Vzryva
\yr 2010
\vol 46
\issue 5
\pages 112--118
\mathnet{http://mi.mathnet.ru/fgv1232}
\elib{https://elibrary.ru/item.asp?id=15267810}
\transl
\jour Combustion, Explosion and Shock Waves
\yr 2010
\vol 46
\issue 5
\pages 593--598
\crossref{https://doi.org/10.1007/s10573-010-0078-5}
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