By a News Reporter-Staff News Editor at Defense & Aerospace Week -- Investigators discuss new findings in Propulsion and Power. According to news reporting originating from Stuttgart, Germany, by VerticalNews correspondents, research stated, "One method of significantly improving the performance of gas turbine engines is to use the thermodynamically more efficient unsteady combustion with pressure rise. In this work, the feasibility of using the interaction of shock waves with a flame to achieve pressure-gain combustion is investigated."
Our news editors obtained a quote from the research from the University of Stuttgart, "A new analytical model is described. The pressure rise and entropy suppression of a single shock flame interaction event is predicted for the first time. The model is quasi-one dimensional, with the shock wave planar and the flame laminar premixed. Given known initial flowfield and flame geometry, as well as the incident shock Mach number, the model allows the calculation of a fully defined one-dimensional flowfleld that is formed at the end of a single shock flame interaction event. The analytical model is successfully verified using experimental data on methane-oxygen-argon flames. It is found that a single shock flame interaction event temporally generates a dramatic increase in pressure compared to isobaric combustion with the same unburned gas conditions. The associated increase in temperature remains at a relatively moderate level."
According to the news editors, the research concluded: "Further, combustion entropy rise is significantly reduced through a single shock flame interaction event."
For more information on this research see: Pressure-Gain Combustion Using Shock-Flame Interaction. Journal of Propulsion and Power, 2013;29(5):1181-1193. 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 E. Lutoschkin, University of Stuttgart, Inst Aircraft Prop Syst, D-70174 Stuttgart, Germany. Additional authors for this research include M.G. Rose and S. Staudacher.
Keywords for this news article include: Europe, Germany, Stuttgart, Propulsion and Power
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2013, NewsRx LLC