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首页> 外文期刊>Combustion Science and Technology >NUMERICAL INVESTIGATION OF DIFFERENT INJECTION PATTERNS IN ROTATING DETONATION ENGINES
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NUMERICAL INVESTIGATION OF DIFFERENT INJECTION PATTERNS IN ROTATING DETONATION ENGINES

机译：旋转爆轰发动机中不同注射方式的数值研究

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摘要

Previous numerical simulations of the hydrogen-air rotating detonation engine have been carried out using a simple fuel-injection pattern. This pattern assumes that the fresh gas mixture is injected through every point of the head-wall. This article improves the simulation by discussing four new injection patterns. Parts of the wall are treated as a solid wall in the new patterns. The simulation results show that slits or intervals on the head-walls cause interactions between the detonation waves and combustion products, which affect the formation and stability of detonation. Unstable detonation should be a normal state of rotating detonation engines between stable detonation and failed detonation. The features of the flow fields can be used as a reference for combustion chamber design.
机译：以前使用简单的燃料喷射方式对氢气-空气旋转爆轰发动机进行了数值模拟。该模式假定新鲜气体混合物通过顶壁的每个点注入。本文通过讨论四种新的注入模式来改进仿真。在新样式中，部分墙被视为实心墙。仿真结果表明，顶壁上的缝隙或间隔会引起爆轰波与燃烧产物之间的相互作用，从而影响爆轰的形成和稳定性。不稳定起爆应该是旋转起爆发动机在稳定起爆和失败起爆之间的正常状态。流场的特征可以用作燃烧室设计的参考。

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  • 来源
    《Combustion Science and Technology》 |2015年第3期|343-361|共19页
  • 作者

    Liu M.; Zhou R.; Wang J. -P.;

  • 作者单位

    Peking Univ, Dept Mech & Aerosp Engn, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China.;

    Peking Univ, Dept Mech & Aerosp Engn, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China.;

    Peking Univ, Dept Mech & Aerosp Engn, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China.;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Injection patterns; Rotating detonation engines; Simulation;

    机译：注射方式旋转爆震发动机;模拟;

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