| 负攻角对向心涡轮内部流动影响的研究 |
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| 引用本文： | 杨浩,宁智.负攻角对向心涡轮内部流动影响的研究[J].铁道机车车辆,2011,31(Z1):192-196. |
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| 作者姓名： | 杨浩 宁智 |
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| 作者单位： | 北京交通大学机电工程学院,北京,100044 |
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| 摘 要： | 对车用涡轮增压器向心涡轮级进行全三维黏性流动数值模拟,研究叶轮攻角变化对向心涡轮内部涡系产生及二次流的影响规律.研究表明,一定大小的负攻角可以有效改善叶轮进口段的流动,并保证叶轮的载荷和做功能力；二次流在攻角的影响下经历了一个较为复杂的演变过程,各种形式的二次流之间相互制约共同影响着二次流损失,二次流损失和攻角损失共同...
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| 关 键 词： | 向心涡轮 攻角 二次流 数值模拟 |
Numerical Investigation of the Effects on Fluid Flow Inside Radial Inflow Turbine under Different Negative Incidences |
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| YANG Hao
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NING Zhi.Numerical Investigation of the Effects on Fluid Flow Inside Radial Inflow Turbine under Different Negative Incidences[J].Railway Locomotive & Car,2011,31(Z1):192-196. |
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| Authors: | YANG Hao NING Zhi |
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| Institution: | YANG Hao,NING Zhi(College of Mechanical and Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | This paper presents the three-dimensional numerical simulation research on the flow inside a radial inflow turbine and analyzes the influence of different incidences on vortices and secondary flow in a radial inflow turbine.Results show that a certain size negative incidence can effectively improve the flow of the impeller inlet and ensure that the load and the capacity for doing work of the impeller;secondary flow experiences a complex evolution process under the effects of incidence,various forms of secon... |
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| Keywords: | radial inflow turbine incidence secondary flow numerical simulation |
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