| 计算流管声场的三维有限元数值模型 |
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| 引用本文： | 陈光,王同庆.计算流管声场的三维有限元数值模型[J].工程热物理学报,2007,28(5):766-768. |
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| 作者姓名： | 陈光 王同庆 |
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| 作者单位： | 北京航空航天大学流体与声学实验室,北京,100083 |
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| 摘 要： | 发展了一种三维有限元数值模型和计算方法来对矩形流管声场进行整体的计算.与以往的二维方法相比,此种数值方法不仅全面反映了矩形流管内声波的传播情况,而且提高了网格精度,从而大大扩展了对铺设有声衬的流管的计算领域.结果表明,该数值模型是有效和准确的,与其它方法和文献的计算结果吻合得非常好.同时,在大大增加计算量的同时,也对程序代码进行了优化工作,提高了计算效率.
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| 关 键 词： | 流管 有限元 三维 声传播 |
| 文章编号： | 0253-231X(2007)05-0766-03 |
| 修稿时间： | 2006年11月24 |
A THREE-DIMENSION FEM NUMERICAL MODEL TO CALCULATE THE ACOUSTIC FIELD IN FLOW DUCT |
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| CHEN Guang,WANG Tong-Qing.A THREE-DIMENSION FEM NUMERICAL MODEL TO CALCULATE THE ACOUSTIC FIELD IN FLOW DUCT[J].Journal of Engineering Thermophysics,2007,28(5):766-768. |
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| Authors: | CHEN Guang WANG Tong-Qing |
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| Abstract: | A Three-Dimension FEM numerical model and the method for calculating the acoustics field in rectangular duct have been developed.Compared with those previous approaches,this nu- merical method not only comprehensively demonstrates the three dimension acoustic propagation in rectangular duct but also broadens the range of acoustic computation in flow duct with liner by using higher order accuracy.Concluded from the results,the numerical model is effective and accurate,and it coincides satisfactorily with other methods.Meanwhile,the code of this method is optimized as the amount of computation increases greatly,and the efficiency in calculating is improved. |
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| Keywords: | flow duct finite element method three-dimension acoustic propagation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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