| 二元喷管气动喉道控制的数值模拟 |
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| 引用本文： | 王庆伟,刘波,王如根.二元喷管气动喉道控制的数值模拟[J].航空学报,2009,30(2):226-231. |
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| 作者姓名： | 王庆伟 刘波 王如根 |
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| 作者单位： | 1. 西北工业大学,动力与能源学院,陕西,西安,710072
2. 空军工程大学,工程学院,陕西,西安,710038 |
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| 基金项目： | 国家级国防科技重点实验室基金(9140C420408ZS51) |
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| 摘 要： | 采用二阶迎风格式，并结合S-A湍流模型求解N-S方程，对喉部注气的二元拉瓦尔喷管内部和周围流场进行了二维数值模拟，分析了注气总压比、注气总温比、射流缝缝宽和注气角度对喷管气动喉道控制的影响。计算结果表明：喷管相对喉道面积比随注气总压比和射流缝缝宽的增大而基本呈线性地减小，而注气总温比对喷管相对喉道面积比的影响很小；注气角度对气动喉道控制有一定的影响，当注气角度在-30°左右时，相对喉道面积比最小。
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| 关 键 词： | 喷管 气动喉道控制 喉道面积 注气 注气流量比 |
Numerical Simulation of Two-dimensional Nozzle Using Fluidic Injection for Throat Area Control |
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| Wang Qingwei,Liu Bo,Wang Rugen.Numerical Simulation of Two-dimensional Nozzle Using Fluidic Injection for Throat Area Control[J].Acta Aeronautica et Astronautica Sinica,2009,30(2):226-231. |
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| Authors: | Wang Qingwei Liu Bo Wang Rugen |
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| Institution: | 1.Department of Aero-Engines;Northwestern Polytechnical University;Xi'an 710072;China;2.The Engineering Institute;Air Force Engineering University;Xi'an 710038;China |
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| Abstract: | In order to study the influence of the ratios of injection pressure and injection temperature,injection slot width and jet angle on fluidic throat control,a two-dimensional flow field inside a nozzle and around it with a jet flow at the throat is numerically simulated by computing the N-S equation through second-order wind disperse schemes and an S-A model.The results show that the ratio of the throat area decreases almost linearly when the ratio of injection pressure or injection slot width increase,but th... |
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| Keywords: | nozzle fluidic throat control throat area jet flow ratio of injection flux |
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