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| 涡轮增压器离心压气机非稳态工况流场分析 | |
| 引用本文： | 马超,朱智富,马朝臣,刘云岗.涡轮增压器离心压气机非稳态工况流场分析[J].应用力学学报,2011,28(1). |
| 作者姓名： | 马超 朱智富 马朝臣 刘云岗 |
| 作者单位： | 1. 山东大学,250061,济南;寿光康跃增压器有限公司,262711,寿光 2. 寿光康跃增压器有限公司,262711,寿光 3. 北京理工大学,100081,北京 4. 山东大学,250061,济南 |
| 摘 要： | 利用商用 CFD 软件对一小型车用离心压气机建立了数值模型,并将模拟结果与实验结果进行了对比:稳态的设计转速最高压比相差不超过 0.5%,最高效率相差不超过1.5%;非稳态模拟和实验得到的失速频率均为 3000Hz,模拟结果真实可信.主要利用设计转速下小流量工况时的非稳态数值模拟结果对喘振发生前离心压气机各部件的非稳态流动特点进行了详尽阐述.研究结果表明:小流量工况时离心压气机各部件均出现非稳态流动现象,这种非稳态效应在各部件中表现出不同的特点,且随着流量的减小这种非稳态效应会不断加剧. |
| 关 键 词： | 离心压气机 失速 非稳态流动 数值模拟 |
Unsteady flow of the turbocharger centrifugal compressor |
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| Ma Chao,Zhu Zhifu,Ma Chaochen,Liu Yungang.Unsteady flow of the turbocharger centrifugal compressor[J].Chinese Journal of Applied Mechanics,2011,28(1). | |
| Authors: | Ma Chao Zhu Zhifu Ma Chaochen Liu Yungang |
| Institution: | Ma Chao1,2 Zhu Zhifu2 Ma Chaochen3 Liu Yungang1(School of Energy & Power Engineering,Shandong University,250061,Jinan,China)1(Shouguang Kangyue Turbocharger Co,LTD,262711,Shouguang,China)2(School of Mechanical & Vehicle Engineering,Beijing Institute of Technology,100081,Beijing,China)3 |
| Abstract: | The numerical model of a centrifugal compressor used in small vehicle is established by a commercial CFD software,the simulated and the experimental results are compared.Difference of two steady results at the highest pressure ratio is within 0.5%,and the highest efficiency is no more than 1.5% in design speed condition.The stall frequencies got by the unsteady simulation and the experiment are 3000Hz,so the simulation result is credible.The unsteady flow characteristics of all parts of the centrifugal comp... |
| Keywords: | centrifugal compressor stall unsteady flow numerical simulation |
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