| Citation: | YANG Chenghao，FENG Heying，PENG Yehui，et al.Effects of porous media on rod⁃airfoil interaction noise［J］.Journal of Aerospace Power，2022，37（7）：1528‑1538. doi: 10.13224/j.cnki.jasp.20210270
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Using LES （large eddy simulation） and FW⁃H （Ffowcs Williams⁃Hawkings） equation，the influences of porous media with different PPI （pore number per inch） and thicknesses on the cylindrical wake and rod⁃airfoil interaction noise were studied，and the noise reduction law and mechanism of porous media were explored.The results showed that the porous media can stabilize the shear layer on the surface of the cylinder，inhibit the vortex shedding，and weaken the impact of wake on the downstream airfoil.The maximum tonal noise of the rod can be reduced by 79 dB，the peak value of the tonal noise of the airfoil can be reduced by 13.22 dB，and the broadband noise can be reduced by 20 dB.The change of porous material PPI had little effect on the noise reduction effect，while the thickness served as a key parameter affecting the flow field mode，noise reduction effect and aerodynamic performance.When the thickness of the porous material was appropriate，the flow field of the rod⁃airfoil was of “shear layer mode”，which can effectively reduce the turbulent interaction noise.When the thickness of the porous material was small，a flow field form “shear layer⁃wake mode” was found，which caused the increase of airfoil noise.The appropriate thickness of porous media can not only reduce noise significantly，but also improve the aerodynamic performance of rod⁃airfoil.
| [1] |
CHEN W J，QIAO W Y，TONG F，et al.Numerical investigation of wavy leading edges on rod–airfoil interaction noise[J].AIAA Journal，2018，56（7）:2553⁃2567.
|
| [2] |
陈伟杰，乔渭阳，王良锋，等.基于LES与FW⁃H方程的圆柱⁃翼型干涉噪声数值研究[J].航空动力学报，2016，31（9）:2146⁃2155.
CHEN Weijie，QIAO Weiyang，WANG Liangfeng，et al.Investigation of rod⁃airfoil interaction noise using large eddy simulation and FW⁃H equation[J].Journal of Aerospace Power,2016，31（9）:2146⁃2155.（in Chinese）
|
| [3] |
RASHIDI S，HAYATDAVOODI M，ESFAHANI J A.Vortex shedding suppression and wake control:A review[J].Ocean Engineering，2016，126:57⁃80.
|
| [4] |
陈伟杰，乔渭阳，仝帆，等.前缘锯齿对边界层不稳定噪声的影响[J].航空学报，2016，37（12）:3634⁃3645.
CHENG Weijie，QIAO Weiyang，TONG Fan，et al.Effect of leading⁃edge serrations on boundary layer instability noise[J].Acta Aeronautica et Astronautica Sinica，2016，37（12）:3634⁃3645.（in Chinese）
|
| [5] |
GEYER T F，WASALA S H，SARRADJ E.Experimental study of airfoil leading edge combs for turbulence interaction noise reduction[J].Acoustics，2020，2（2）:207⁃223.
|
| [6] |
同航，黎霖，卯鲁秦,等.波浪前缘静子叶片对高速轴流风扇单音噪声的影响[J].航空学报，2020，41（10）:92⁃105.
TONG Hang，LI Lin，MAO Luqin，et al.Tonal noise reduction of a high⁃speed single axial fan with wavy leading⁃edge stator[J].Acta Aeronautica et Astronautica Sinica，2020，41（10）:92⁃105.（in Chinese）
|
| [7] |
沈国辉,张扬,郑翀,等.光滑圆柱风噪声的降噪措施研究[J].振动与冲击,2020,39（23）:52⁃57.
SHEN Guohui，ZHANG Yang，ZHENG Chong，et al.Denoising measures against aeolian noise of smooth circular cylinders[J].Journal of Vibration and Shock，2020,39（23）:52⁃57.（in Chinese）
|
| [8] |
HUTCHESON F V，BROOKS T F.Noise radiation from single and multiple rod configurations[J].International Journal of Aeroacoustics，2012，11（3/4）:291⁃333.
|
| [9] |
SUMESH C K，SARVOTHTHAMA JOTHI T J.Aerodynamic noise characteristics of a thin airfoil with line distribution of holes adjacent to the trailing edge[J].International Journal of Aeroacoustics，2019，18（4/5）:496⁃516.
|
| [10] |
ZAMPONI R，SATCUNANATHAN S，MOREAU S，et al.On the role of turbulence distortion on leading⁃edge noise reduction by means of porosity[J].Journal of Sound and Vibration，2020，485:115561.1⁃115561.22.
|
| [11] |
ARENAS J P，CROCKER M J.Recent trends in porous sound⁃absorbing materials[J].Sound and Vibration，2010，44（7）:12⁃18.
|
| [12] |
魏峥,夏超,袁海东,等.覆盖多孔介质的圆柱尾迹实验研究[J].空气动力学学报，2017，35（2）:265⁃270，289.
WEI Zheng，XIA Chao，YUAN Donghai，et al.Experimental study on the wake of a circular cylinder with porous layer coating[J].Acta Aerodynamica Sinica，2017，35（2）:265⁃270，289.（in Chinese）
|
| [13] |
陈羽,杨志刚,王毅刚.分离区多孔介质控制的圆柱气动噪声试验研究[R].北京:2019年中国力学大会，2019.
|
| [14] |
HU Z J，LIU H R，CHEN N S，et al.Vortex shedding noise and flow mode analysis of cylinder with full/partial porous coating[J].Aerospace Science and Technology，2020，106:106154.1⁃106154.16.
|
| [15] |
LIU H R，WEI J J，QU Z G.Prediction of aerodynamic noise reduction by using open⁃cell metal foam[J].Journal of Sound and Vibration，2012，331（7）:1483⁃1497.
|
| [16] |
ZHANG P K，LIU Y，LI Z Y，et al.Numerical study on reducing aerodynamic drag and noise of circular cylinders with non‑uniform porous coatings[J].Aerospace Science and Technology，2020，107:106308.1⁃106308.14.
|
| [17] |
宁方立,张畅通,宁舜山,等.多孔材料对空腔噪声抑制效果研究[J].振动与冲击,2020,39（11）:31⁃37，44.
NING Fangli，ZHANG Changtong，NING Shunshan，et al.Study on suppression effect of porous material on cavity noise[J].Journal of vibration and shock，2020，39（11）:31⁃37，44.（in Chinese）
|
| [18] |
LI Y，CHEN Z W，WANG X N.Flow/noise control of a rod‑airfoil configuration using “natural rod⁃base blowing”:numerical experiments[J].European Journal of Mechanics:B/Fluids，2020，83:99⁃113.
|
| [19] |
ABBASI S，SOURI M.Reducing aerodynamic noise in a rod‑airfoil using suction and blowing control method[J].International Journal of Applied Mechanics，2020，12（4）:2050036.1⁃2050036.24.
|
| [20] |
JACOB M C，BOUDET J，CASALINO D，et al.A rod⁃airfoil experiment as a benchmark for broadband noise modeling[J].Theoretical and Computational Fluid Dynamics，2005，19（3）:171⁃196.
|
| [21] |
BHATTACHARYYA S，SINGH A K.Reduction in drag and vortex shedding frequency through porous sheath around a circular cylinder[J].International Journal for Numerical Methods in Fluids，2011，65（6）:683⁃698.
|
| [22] |
BAE Y，JEONG Y E，MOON Y J.Computation of flow past a flat plate with porous trailing edge using a penalization method[J].Computers and Fluids，2012，66:39⁃51.
|
| [23] |
ERGUN S，ORNING A A.Fluid flow through randomly packed columns and fluidized beds[J].Industrial and Engineering Chemistry，1949，41（6）:1179⁃1184.
|
| [24] |
TONG F，QIAO W Y，CHEN W J，et al.Broadband noise prediction using large eddy simulation and a frequency domain method[J].Applied Acoustics，2017，117:94⁃105.
|
| [25] |
PEROT F，AUGER J M，GIARDI H，et al.Numerical prediction of the noise radiated by a cylinder[R].Hilton Head,US:the 9th AIAA/CEAS Aeroacoutics Conference,2003.
|
| [26] |
NAITO H，FUKAGATA K.Numerical simulation of flow around a circular cylinder having porous surface[J].Physics of Fluids，2012，24（11）:117102.1⁃117102.20.
|
| [27] |
AGUIAR J，YAO Hua，LIU Yu.Passive flow/noise control of a cylinder using metal foam[R].Athens，Greece:the 23rd international Congress on Sound and Vibration，2016.
|
| [28] |
LI Z，TANG T T，LIU Y，et al.Numerical study of aerodynamic and aeroacoustic characteristics of flow over porous coated cylinders:Effects of porous properties[J].Aerospace Science and Technology，2020，105:106042.1⁃106042.14.
|
| [29] |
GEYER T F.Experimental evaluation of cylinder vortex shedding noise reduction using porous material[J].Experiments in Fluids，2020，61（7）:1⁃21.
|
| [30] |
JIANG Y，MAO M L，DENG X G，et al.Numerical investigation on body⁃wake flow interaction over rod⁃airfoil configuration[J].Journal of Fluid Mechanics，2015，779（25）:1⁃35.
|
| [31] |
LIU H R，WEI J J，QU Z G.The interaction of porous material coating with the near wake of bluff body[J].Journal of Fluids Engineering，2014，136（2） :021302.1⁃021302.8.
|
| [32] |
SUEKI T，TAKAISHI T，IKEDA M，et al.Application of porous material to reduce aerodynamic sound from bluff bodies[J].Fluid Dynamics Research，2010，42（1）:015004.1⁃015004.15.
|
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