Rotary Ramjet Engine - Numerical analysis of aerodynamics and combustion

• Autorzy: Laube T. , Piechna J. , Müller N.
• Języki publikacji: EN

Abstrakty

EN

The results of numerical calculations of 2-D and 3-D flows and the combustion process in versions of an advanced rotational engine are presented and analysed. Based on the idea of the ramjet internal flow engine, the project of the rotary engine that generates torque on a shaft was developed and its operation analyzed. In the considered version of the rotary ramjet engine, a set of ramjet engines move around a center axis at high angular velocity to realize the supersonic airflow in their engine inlet. The only mowing part of the engine is a fast rotating disk with obliquely located channels near the external part of the disk forming ramjet engines. The channels in disk perform the functions of compressing the air, combusting the air fuel mixture, and generating thrust with the exhaust gases. The general principle of operation and performance of the rotary engine are discussed. Through the numerical solution of the steady averaged Navier-Stokes equations with k-ɛ turbulence model and non-premixed model of combustion, the basic characteristics of the flow and engine efficiency of the presented designs were predicted. The analysis focuses on the flow, combustion, and thermal challenges. Structural considerations are outside the scope of this paper. Results of the 2-D and 3-D simulations are presented in plots of pressure, fluid velocity, temperature, fuel and oxygen distribution.

Słowa kluczowe

EN

shock wave compression; non-premixed combustion

• Wydawca: Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archivum Combustionis
• Rocznik: 2014
• Tom: Vol. 34 nr 2
• Strony: 129--154
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Laube T.

• Warsaw University of Technology Institute of Aeronautics and Applied Mechanics, 24 Nowowiejska Str., Warsaw – Poland

autor

Piechna J.

• Warsaw University of Technology Institute of Aeronautics and Applied Mechanics, 24 Nowowiejska Str., Warsaw – Poland

autor

Müller N.

• Michigan State University Dept. of Mechanical Engineering 2448 Engineering Building, East Lansing, Michigan 48824-1226

Bibliografia

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• [3] Decker W., Practical Ramjet Design, Decker Engine Works, Virginia.
• [4] W. J.A. Dahm, A.P. Lapsa and P.E.Hamlington, Inside-Out Rotary Ramjet Turbogenerator, AIAA 2006-4169 4th International Energy Conversion Engineering Conerence and Exhibitit (IECEC) 26-29 June 2006, San Diego, California
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• [6] Mathieu Picard, David Rancourt, Jean-Sébastien Plante, and Martin Brouillette. "High-g Field Combustor of a Rim–Rotor Rotary Ramjet Engine", AIAA Journal, Vol. 52, No. 5 (2014), pp. 1024-1034.
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