| 可变进气涡流系统气道入口流速的PIV测量 |
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| 引用本文： | 刘福水,李向荣,姜庆强.可变进气涡流系统气道入口流速的PIV测量[J].北京理工大学学报,2006(5):492-495. |
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| 作者姓名： | 刘福水 李向荣 姜庆强 |
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| 作者单位： | 北京理工大学机械与车辆工程学院,北京100081;北京理工大学机械与车辆工程学院,北京100081;北京理工大学机械与车辆工程学院,北京100081 |
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| 摘 要： | 为了研究双进气道柴油机缸内涡流的调节原理及性能,在稳流气道试验台上测试了一种带涡流调节阀的新型气道组合的流通能力与调节涡流的性能.用PIV系统对各个工况下气道入口的流场进行测量,通过PIV系统输出的二维流场信息估算气道进气质量流量的变化及分配情况,同时利用AVL-FIRE对整个实验系统进行了CFD分析.结果表明,柴油机双进气道通过涡流控制阀调节直气道的进气质量流量及流速,引起总的质量流量的变化,进而改变了缸内涡流的大小.
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| 关 键 词： | 可变进气涡流 粒子图像速度法 稳流气道试验 |
| 收稿时间： | 2005/11/3 0:00:00 |
Particle Image Velocimetry(PIV) Measurement of the Inlet Fields Flow Characteristics for a Variable Swirl System |
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| LIU Fu-shui,LI Xiang-rong and JIANG Qing-qiang.Particle Image Velocimetry(PIV) Measurement of the Inlet Fields Flow Characteristics for a Variable Swirl System[J].Journal of Beijing Institute of Technology(Natural Science Edition),2006(5):492-495. |
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| Authors: | LIU Fu-shui LI Xiang-rong and JIANG Qing-qiang |
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| Institution: | School of Mechanical and Velicular Engineering,Beijing Institute of Technology,Beijing 100081,China;School of Mechanical and Velicular Engineering,Beijing Institute of Technology,Beijing 100081,China;School of Mechanical and Velicular Engineering,Beijing Institute of Technology,Beijing 100081,China |
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| Abstract: | In order to investigate the principle of working in a diesel variable swirl system,the flow performance of a set of inlet ports with a swirl control valve was studied on a steady flow rig,and PIV was made use of for taking photographs of the flow fields near the inlets,through which the mass flow rate of the ports was counted.At the same time,the testing system was analyzed by CFD method with the simulation code AVL-FIRE.Experiments showed that the mass flow rate and the air velocity of diesel inlet ports can be changed by the swirl control valve.The swirl in the cylinder can also be changed by the swirl control valve. |
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| Keywords: | variable intake swirl particle image velocimetry(PIV) steady flow rig test |
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