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Dongsuk Kim, Majid Asli and Klaus Höschler
As the issue of pollutant emissions from aviation propulsion escalates, research into alternative powertrains is gaining momentum. Two promising technologies are the Hybrid Electric Propulsion System (HEPS) and Pressure Gain Combustion (PGC). HEPS is exp...
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Jae-Hyuk Lee, Jae-Hoon Ryu, Eun-Sung Lee, Hyung-Seok Han and Jeong-Yeol Choi
A noncircular engine cross-section could provide great flexibility in the integration of propulsion into the airframe. In this work, a tri-arc RDE was constructed and tested as an example of noncircular cross-sectioned RDE. The operational characteristic...
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Weiqiang Xiong, Yunjie Liu, Tianfu Zhang, Shixi Wu, Dawen Zeng, Xiang Guo and Aimin Pang
Aluminium?lithium alloy (Al?Li alloy) powder has excellent ignition and combustion performance. The combustion product of Al?Li alloy powder combined with ammonium perchlorate is gaseous at the working temperature of solid rocket motors, which greatly re...
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Noraiz Mushtaq, Gabriele Colella and Paolo Gaetani
Pressure gain combustion is a promising alternative to conventional gas turbine technologies and within this class the Rotating Detonation Engine has the greatest potential. The Fickett?Jacobs cycle can theoretically increase the efficiency by 15% for me...
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Xuanye Liang, Lijun Yang, Gaofeng Wang and Jingxuan Li
The bifurcation process of self-sustained combustion instability pressure perturbations in a liquid rocket combustor is investigated based on the Helmholtz equations and a pressure dependent flame describing function. The modal frequency and growth rates...
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Jingtao Wu, Zhe Kang and Zhijun Wu
For the requirements of rigorous CO2 and emissions regulations, steam assist technology is an effective method for thermal efficiency enhancement. However, few studies apply steam assist technology in modern internal combustion engines. Stimulated by its...
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Galia Faingold, Leonid Tartakovsky and Steven H. Frankel
In the reported study, various aspects of dimethyl ether/hydrogen combustion in a Reactivity Controlled Compression Ignition (RCCI) engine are numerically evaluated using Reynolds Averaged Navier-Stokes (RANS) and Large Eddy Simulation (LES). Early direc...
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