By a News Reporter-Staff News Editor at Defense & Aerospace Week -- Current study results on Propulsion and Power have been published. According to news reporting originating from Beijing, People's Republic of China, by VerticalNews correspondents, research stated, "The purpose of this paper is to investigate the combustion process and its change with time due to solid-fuel regression in a solid-fuel scramjet combustor. The combustion process is simplified in the sequence changing of three regression shapes."
Our news editors obtained a quote from the research from the Beijing Institute of Technology, "The solid fuel uses hydroxyl-terminated polybutadiene with a global one-step reaction mechanism. Numerical simulations based on the shear stress transport k-omega model are confirmed by experiments. The simulation data generally agree with the experimental data published in the literature. For simplification, three typical instants during the combustion process, implying three different internal shapes due to fuel regression, are considered. With the sequence of three regression shapes, the fuel diffusion from a solid-fuel surface becomes more extensive and, furthermore, enhances the global combustion efficiency, which is nearly up to 45% at the outlet of the combustor. The simulation results also reveal that the cavity in the combustor provides a fuel enrichment zone and a stable pool of hot reaction products. A thermal choke is caught in the flowfleld for the initial geometry, whereas a shock train appears in the main flow and has a tendency to extend with the surface regression."
According to the news editors, the research concluded: "The investigation of the combustion process in this work provides some insight into the design considerations for a combustor with a cavity for a solid-fuel scramjet."
For more information on this research see: Numerical Investigation on Internal Regressing Shapes of Solid-Fuel Scramjet Combustor. Journal of Propulsion and Power, 2013;29(5):1041-1051. Journal of Propulsion and Power can be contacted at: Amer Inst Aeronautics Astronautics, 1801 Alexander Bell Drive, Ste 500, Reston, VA 22091-4344, USA.
The news editors report that additional information may be obtained by contacting X.Y. Pei, Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, People's Republic of China. Additional authors for this research include Z.W. Wu, Z.J. Wei and J.Y. Liu.
Keywords for this news article include: Asia, Beijing, Propulsion and Power, People's Republic of China
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