不同抽吸孔布局的进气道数值模拟机理分析

doi:10.3969/j.issn.1009-086x.2021.02.007

现代防御技术 ›› 2021, Vol. 49 ›› Issue (2): 43-48.DOI: 10.3969/j.issn.1009-086x.2021.02.007

不同抽吸孔布局的进气道数值模拟机理分析

刘波

神华准格尔能源有限责任公司,内蒙古准格尔 017000

收稿日期:2020-10-14 修回日期:2020-12-28 出版日期:2021-04-20 发布日期:2021-04-30
作者简介:刘波(1987-),男,内蒙古呼和浩特人。工程师,学士,从事进气道、汽轮机方面的设计。通信地址:017000 内蒙古准格尔旗薛家湾镇 E-mail:liu_bo2020@163.com

Mechanism Analysis of Inlet with Different Suction Slots Layout by Numerical Simulation

LIU Bo

Shenghua Group Zhunguner Energy CO.,LTD,Inner Mongolia Zhungeer 017000,China

Received:2020-10-14 Revised:2020-12-28 Online:2021-04-20 Published:2021-04-30

摘要/Abstract

摘要： 采用标准k-ω SST湍流模型数值计算方法,针对2种不同抽吸孔布局的超声速进气道数值进行了模拟机理分析。结果表明:在抽吸孔前缘引起的膨胀波与唇口反射激波相交,马赫数增加;模型-1在抽吸孔内形成循环涡流,马赫数增加到3.6,并在抽吸孔内多次反射,在抽吸孔出口的马赫数降低;而模型-2由于在受到剪切层的影响,在抽吸孔内形成循环涡流变成亚声速区域;在抽吸孔后缘形成强压缩波,与进气道反射激波多次相交,模型-2的进气道上壁面下游的压力整体趋势大于模型-1的壁面压力。

关键词: 抽吸孔, 反射激波, 剪切层, 湍流模型, 机理分析

Abstract: Mechanism analysis of supersonic inlet with two suction slot layout using standard k-ω SST turbulence model with numerical calculation method.The results show that:Mach number increased due to interaction with reflected shock wave and expansion wave caused by the leading edge of the suction slot;A circulate eddy is formed in the suction slot and multiple reflected in model-1.The Mach number increases to 3.6.and then decreased in the;A subsonic region is formed in the suction slot of model-2 due to shear layer,and a strong compression wave is formed at the rear edge of the suction slot,which intersect with the reflected shock wave many times.Upper wall pressure of model-2 is larger than model-1 with the overall trend.

Key words: suction slot, reflected shock wave, shear layer, turbulence model, mechanism analysis

中图分类号:

V430
TJ760.3

刘波. 不同抽吸孔布局的进气道数值模拟机理分析[J]. 现代防御技术, 2021, 49(2): 43-48.

LIU Bo. Mechanism Analysis of Inlet with Different Suction Slots Layout by Numerical Simulation[J]. Modern Defense Technology, 2021, 49(2): 43-48.

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不同抽吸孔布局的进气道数值模拟机理分析

Mechanism Analysis of Inlet with Different Suction Slots Layout by Numerical Simulation

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