| 摘要: |
| 驻涡燃烧室凹腔内流场对其燃烧性能有重要的影响,为了找出凹腔流场的特性,使用数值和实验两种手段对凹腔内双驻涡稳焰冷态流场进行了初步研究。研究结果表明:在主流速度和凹腔前壁面吹气速度一定的情况下存在一个最佳的后壁面吹气速度使得凹腔内的流场稳定,以满足先进燃烧室所期望的条件。研究成果初步确定了凹腔双驻涡稳焰冷态流场特征,并为开展热态研究打下基础。 |
| 关键词: 驻涡 凹腔 流动分布 数值仿真 |
| DOI： |
| 分类号:V235.11 |
| 基金项目: |
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| Elementary study on cool flow field of double vortex in cavity for flame stabilization |
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XING Fei,MENG Xiang-tai,LI Ji-bao,FAN Wei-jun
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1.Coll.of Energy and Power Engineering,Beijing Univ.of Aeronautics and Astronautics,Beijing 100083,China;2.Shenyang Aeroengine Research Inst.,Shenyang 110015,China)
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| Abstract: |
| The flow pattern inside the cavity is a critical aspect of TVC performance.To improve the retention of unmixed fuel in the cavity,a double-vortex is studied for the cavity with PIV measurements and CFD.The results show that there is an optimal value for the afterwall-air speed with fixed speed of main air and forewall-air to intensify stability of the double trapped-vortex. |
| Key words: Trapped vortex Cavity Flow distribution Numerical simulation |
