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On supersonic combustion

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Abstract

Some basic concepts and features of supersonic combustion are explained from the view point of macroscopic aerodynamics. Two kinds of interpretations of supersonic combustion are proposed. The difference between supersonic combustion and subsonic combustion is discussed, and the mechanism of supersonic combustion propagation and the limitation of heat addition in supersonic flow are pointed out. The results of the calculation of deflagration in supersonic flow show that the entropy increment and the total pressure loss of the combustion products may decrease with the increase of combustion velocity. It is also demonstrated that the oblique detonation wave angle may not be controlled by the wedge angle under weak underdriven solution conditions and be determined only by combustion velocity. Therefore, the weak underdriven solution may become self-sustaining oblique detonation waves with a constant wave angle.

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Authors and Affiliations

  1. Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, 100080, Beijing, China

    Shengxue Yuan

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  1. Shengxue Yuan
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Project supported by the National Natural Science Foundation of China (Grant Nos. 9482010, 59686005).

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Yuan, S. On supersonic combustion. Sci. China Ser. A-Math. 42, 171–179 (1999). https://doi.org/10.1007/BF02876569

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  • DOI: https://doi.org/10.1007/BF02876569

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