Pressure radiation from a perforated duct exit region
Pressure radiation from a perforated duct exit region
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来自穿孔管道出口区域的压力辐射
DOI：
10.1016/j.jsv.2015.03.040
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发表时间：
2015-09
影响因子：
4.7
通讯作者：
Pokrajac Dubrayka
中科院分区：
文献类型：
--
作者：
Wang Honglin;Vardy Alan E.;Pokrajac Dubrayka
采用CFD数值模拟方法研究了开孔延伸区对管道端部辐射压力的影响。平面2-D的几何形状被认为是特别注意的情况下，从铁路隧道辐射的压力扰动在明挖回填区。导致这种行为的机制进行了描述，它被证明有一个重要的影响穿孔的延伸区域的有效性。据发现，这样的区域可以大大减少从管道出口辐射的压力，但这种好处是抵消了直接从孔沿着穿孔区域本身辐射的压力。在隧道设计的特殊情况下，波传播的实际研究通常基于一维平面波分析。因此，注意力放在评估这种方法的局限性的情况下，波传播沿着穿孔区域。
The influence of a perforated extension region on pressures radiated from the end of a duct is studied numerically using CFD. Planar 2-D geometry is considered and particular attention is paid to the case of pressure disturbances radiated from railway tunnels in cut-and-cover regions. The mechanism that causes this behaviour is described and it is shown to have an important influence of the effectiveness of a perforated extension region. It is found that such regions can strongly reduce the pressures radiated from a duct outlet, but that this benefit is offset by pressures radiated directly from the holes along the perforated region itself. In the particular case of tunnel design, practical studies of wave transmission are usually based on 1-D, plane-wave, analyses. Accordingly, attention is paid to assessing the limitations of such approaches in the case of wave propagation along a perforated region.
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影响因子：
3.6
作者：
M. S. Howe;E. A. Cox
通讯作者：
M. S. Howe;E. A. Cox
DOI：
10.1299/kikaib.71.2248
发表时间：
2005
期刊：
Transactions of the Japan Society of Mechanical Engineers. C
影响因子：
--
作者：
T. Fukuda;S. Ozawa;M. Iida;T. Takasaki;Y. Wakabayashi
通讯作者：
T. Fukuda;S. Ozawa;M. Iida;T. Takasaki;Y. Wakabayashi
DOI：
10.1680/eacm.2008.161.3.107
发表时间：
2008-09
期刊：
2016 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)
影响因子：
--
作者：
A. Vardy
通讯作者：
A. Vardy
DOI：
10.1177/095440620421800403
发表时间：
2004-04
期刊：
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
影响因子：
--
作者：
H. D. Kim;Y. Kweon;T. Aoki;T. Setoguchi
通讯作者：
H. D. Kim;Y. Kweon;T. Aoki;T. Setoguchi
影响因子：
3.2
作者：
M. William-Louis;C. Tournier
通讯作者：
M. William-Louis;C. Tournier