| 轴流式通风机离散噪声的大涡模拟研究 |
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| 引用本文： | 陈庆光,李连举,王维斌,李庆亮.轴流式通风机离散噪声的大涡模拟研究[J].流体机械,2010,38(2). |
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| 作者姓名： | 陈庆光 李连举 王维斌 李庆亮 |
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| 作者单位： | 1. 山东科技大学,山东青岛,266510
2. 山东省科学院工业节能研究中心,山东济南,250103 |
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| 基金项目： | 教育部科学研究重点项目(209070);;山东省教育厅科技计划项目(J08LB03) |
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| 摘 要： | 采用计算流体动力学(CFD)和计算声学(CAA)相结合的方法,对轴流式通风机的离散噪声进行了数值模拟。在定常流动数值计算的基础上,利用宽频声源模型确定了轴流风机主要气动噪声源的位置;采用大涡模拟(LES)方法结合FW-H声学模型,模拟了轴流风机的离散噪声分布。研究结果可为低噪声轴流风机参数优化和结构设计提供参考。
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| 关 键 词： | 大涡模拟 离散噪声 噪声源 数值模拟 |
Large Eddy Simulation of the Discrete Noise in an Axial-flow Fan |
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| CHEN Qing-guang,LI Lian-ju,WANG Wei-bin,LI Qing-liang.Large Eddy Simulation of the Discrete Noise in an Axial-flow Fan[J].Fluid Machinery,2010,38(2). |
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| Authors: | CHEN Qing-guang LI Lian-ju WANG Wei-bin LI Qing-liang |
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| Affiliation: | 1.Shandong University of Science and Technology/a>;Qingdao 266510/a>;China/a>;2.Industrial Energy-saving Research Center of Shandong Academy of Sciences/a>;Jinan 250103/a>;China |
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| Abstract: | Numerical simulation of the discrete noise in an axial-flow fan was performed by utilizing the method of CFD in conjunction with CAA.The location of dominant aerodynamic noise source was founded according to the Broadband Noise Sources model based on the steady flow simulation.The distribution of the discrete noise in the axial-flow fan was simulated by using the large eddy simulation technique and FW-hnoise model.This study would be usefully to design low noise axial-low fan. |
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| Keywords: | large eddy simulation discrete noise noise source numerical simulation |
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