| COMPUTATIONAL FLUID DYNAMICS RESEARCH ON PRESSURE LOSS OF CROSS-FLOW PERFORATED MUFFLER |
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| 作者姓名： | HU Xiaodong ZHOU Yiqi FANG Jianhua School of Mechanical Engineering Shandong University Jinan China MAN Xiliang Shandong Construction Machinery Group Co.Ltd Jinan China ZHAO Zhengxu School of Computing Derby University Derby DE GB UK |
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| 作者单位： | HU Xiaodong ZHOU Yiqi FANG Jianhua School of Mechanical Engineering，Shandong University，Jinan 250061，China MAN Xiliang Shandong Construction Machinery Group Co.Ltd，Jinan 250100，China ZHAO Zhengxu School of Computing，Derby University，Derby DE22 1GB，UK |
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| 摘 要： | The pressure loss of cross-flow perforated muffler has been computed with the procedure of physical modeling,simulation and data processing. Three-dimensional computational fluid dynam-ics (CFD) has been used to investigate the relations of porosities,flow velocity and diameter of the holes with the pressure loss. Accordingly,some preliminary results have been obtained that pressure loss increases with porosity descent as nearly a hyperbolic trend,rising flow velocity of the input makes the pressure loss increasing with parabola trend,diameter of holes affects little about pressure loss of the muffler. Otherwise,the holes on the perforated pipes make the air flow gently and meanly,which decreases the air impact to the wall and pipes in the muffler. A practical perforated muffler is used to illustrate the available of this method for pressure loss computation,and the comparison shows that the computation results with the method of CFD has reference value for muffler design.
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| 关 键 词： | 错流穿孔管消声器 压力损失 计算流体力学研究 孔流速度 |
COMPUTATIONAL FLUID DYNAMICS RESEARCH ON PRESSURE LOSS OF CROSS-FLOW PERFORATED MUFFLER |
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| HU Xiaodong ZHOU Yiqi FANG Jianhua School of Mechanical Engineering,Shandong University,Jinan ,China MAN Xiliang Shandong Construction Machinery Group Co.Ltd,Jinan ,China ZHAO Zhengxu School of Computing,Derby University,Derby DE GB,UK.COMPUTATIONAL FLUID DYNAMICS RESEARCH ON PRESSURE LOSS OF CROSS-FLOW PERFORATED MUFFLER[J].Chinese Journal of Mechanical Engineering,2007,20(2):88-93. |
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| Authors: | HU Xiaodong ZHOU Yiqi FANG Jianhua MAN Xiliang ZHAO Zhengxu |
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| Affiliation: | [1]School of Mechanical Engineering, Shandong University, Jinan 250061, China [2]Shandong Construction Machinery Group Co.Ltd, Jinan 250100, China [3]School of Computing, Derby University,Derby DE22 1GB, UK |
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| Abstract: | The pressure loss of cross-flow perforated muffler has been computed with the procedure of physical modeling, simulation and data processing. Three-dimensional computational fluid dynamics (CFD) has been used to investigate the relations of porosities, flow velocity and diameter of the holes with the pressure loss. Accordingly, some preliminary results have been obtained that pressure loss increases with porosity descent as nearly a hyperbolic trend, rising flow velocity of the input makes the pressure loss increasing with parabola trend, diameter of holes affects little about pressure loss of the muffler. Otherwise, the holes on the perforated pipes make the air flow gently and meanly,which decreases the air impact to the wall and pipes in the muffler. A practical perforated muffler is used to illustrate the available of this method for pressure loss computation, and the comparison shows that the computation results with the method of CFD has reference value for muffler design. |
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| Keywords: | Perforated muffler Pressure loss Computational fluid dynamics (CFD) Porosity Flow velocity PERFORATED PRESSURE LOSS RESEARCH FLUID DYNAMICS comparison method of reference value design practical available computation decreases impact wall pipes make little rising flow velocity input |
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