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Aerospace 2018, 5(3), 96; https://doi.org/10.3390/aerospace5030096

Aerodynamic Design of a Laval Nozzle for Real Gas Using Hodograph Method

1
Moscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, Moscow Region 141701, Russia
2
MIREA—Russian Technological University, 78 Vernadsky Avenue, Moscow 119454, Russia
*
Author to whom correspondence should be addressed.
Received: 31 July 2018 / Revised: 31 August 2018 / Accepted: 3 September 2018 / Published: 10 September 2018
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Abstract

We propose an approach for the design of the subsonic part of plane and axisymmetric Laval nozzles for real gases. The proposed approach is based on the hodograph method and allows one to solve the inverse design problem directly. Real gas effects are taken into consideration using the chemical equilibrium model. We present nozzle contours computed with the proposed method for a stoichiometric methane-air mixture. Results confirm that real gas effects have a strong influence on the nozzle shape. The described method can be used in the design of nozzles for rocket engines and for high-enthalpy wind tunnels. View Full-Text
Keywords: Laval nozzle; hodograph method; real gas; chemical equilibrium; inverse problem; potential flow Laval nozzle; hodograph method; real gas; chemical equilibrium; inverse problem; potential flow
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Chikitkin, A.; Petrov, M.; Dushkov, R.; Shifrin, E. Aerodynamic Design of a Laval Nozzle for Real Gas Using Hodograph Method. Aerospace 2018, 5, 96.

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