Computational investigation of rocket based combined cycle

Xiao-bo Zhang; Zhan-xue Wang; Zeng-wen Liu

doi:10.1117/12.2010759

14 March 2013 Computational investigation of rocket based combined cycle

Xiao-bo Zhang, Zhan-xue Wang, Zeng-wen Liu

Proceedings Volume 8768, International Conference on Graphic and Image Processing (ICGIP 2012); 87681C (2013) https://doi.org/10.1117/12.2010759
Event: 2012 International Conference on Graphic and Image Processing, 2012, Singapore, Singapore

Abstract

Based on Computational Fluid Dynamic technology, the mixing process of Rocket Based Combined Cycle (RBCC) propulsion system is researched. The idea of RBCC propulsion system means combining rocket engine with ramjet engine effectively, which can flight from sea level to high altitude in wide Mach ranges. In order to analyze how the length of the mixing part affects mixing process, different length of mixing part are researched. As it is indicated, with a constant Mach number, increasing the length of mixing part makes main flow and second flow mix more evenly. Moreover, the length of mixing part has a slight impact on the thrust. Obviously the main consequence of increasing the length of mixing part is promoting the mix of main flow and second flow. Therefore, in order to decrease the weight of aircraft, it is of importance to reduce the length. Through comparing distribution of different cases, when working in the situation of maximum power, the flow in the nozzle of rocket engine is under expansion, while that in the nozzle is fully expanded. Nevertheless, in the case of high altitude and high Mach number, there exists a vortex in the nozzle of rocket engine because of over expansion; meanwhile, the flow in the nozzle is under expansion. Therefore, it is necessary to adjust nozzle throat area in order to increase the thrust of RBCC at high altitude.

Citation Download Citation

Xiao-bo Zhang, Zhan-xue Wang, and Zeng-wen Liu "Computational investigation of rocket based combined cycle", Proc. SPIE 8768, International Conference on Graphic and Image Processing (ICGIP 2012), 87681C (14 March 2013); https://doi.org/10.1117/12.2010759

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available