| 气气快速预混喷嘴内部结构仿真研究 |
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| 引用本文： | 苏金友,宋青华,王力军,吴振宇.气气快速预混喷嘴内部结构仿真研究[J].航空发动机,2011,37(5):24-28. |
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| 作者姓名： | 苏金友 宋青华 王力军 吴振宇 |
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| 作者单位： | 沈阳航空航天大学动力与能源工程学院,沈阳,110136 |
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| 摘 要： | 应用稳态时N—S方程、RNGk-ε湍流模型以及非预混燃烧模型对几种预混喷嘴进行了仿真计算。内部结构分别为无肋片无凹槽式、肋片式、凹槽式及凹槽／肋片组合式。从总压损失和掺混效果2方面进行了比较分析，分析认为：凹槽／肋片组合结构的掺混效果相对较好。研究结果可为快速预混喷嘴试验件设计提供一定参考依据。
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| 关 键 词： | 预混喷嘴 数值模拟 航空发动机 气气混合 混合分数 |
Numerical Simulation of Internal Structure for Gas-gas Rapidly Premixed Nozzle |
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| Authors: | SU Jin-you SONG Qing-hu WANG Li-jun WU Zhen-yu |
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| Institution: | SU Jin-you,SONG Qing-hua,WANG Li-jun,WU Zhen-yu(Power and Energy Engineering College,Shenyang Aerospace University,Shenyang 110136,China) |
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| Abstract: | Several premixed nozzles were simulated numerically using the steady-state time-averaged Navier-Stokes equations,RNG turbulent model and non-premixed combustion model.Based on the structure of inner wall,the pre-mixed nozzles investigated fall into such categories as smooth,ribbed,grooved and rib-grooved.From the comparison and analyze between the total pressure loss and mixing effects,the good mixing effect of combined structure of rib and groove was obtained.The research results provid some reference for ... |
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| Keywords: | premixed nozzle numerical simulation aeroengine gas-gas mixing mixture fraction |
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