中文摘要：

采用ANSYS Mechanical有限元计算模块结合基于粘性流理论的计算流体力学方法在Workbench平台上对材料为镍铝青铜的DTMB4381桨进行双向流固耦合计算,提出顺序求解和同步求解2种方法,并与传统的计算流体力学方法对比分析,验证双向流固耦合方法的可行性和优越性.在仅考虑旋转偶极子声源的情况下,基于分离涡模型（DES）求解桨叶表面时域内脉动压力,然后采用边界元方法对某标称伴流场中的5叶大侧斜螺旋桨进行气动声学计算,预报刚性桨无空泡噪声特性.在相同工况下,以双向流固耦合方法为手段,通过傅里叶变换探究材料特性对螺旋桨噪声的影响.

英文摘要：

In Mechanical the commercial software ANSYS with CFD solver base two-way fluid-s from traditional tructure coupling d on vis of NAB COUS W flui DTMB4 CFD method with experimental r orkbench, the paper combines FEM solver ANSYS d theory to accomplish synchronously or sequentially 381, then compares the results from FSI method and esult to confirm the validity and advancement of coupled FSI. In some non-uniform flow field ,the fluctuating pressure on blades in time domain was lated by choosing DES as turbulence model, then non-cavitation noise of highly skewed propell predicted by the method of BEM only considering acoustic rotating dipole. In the same working er was condition, two-way FSI and FFT is used to explore the influence of blade material on propeller noise.