中文摘要：

经过在第 3900 期雷纳兹点的圆形的柱体的流动用大旋涡的模拟(LES ) 被模仿，远地的声音从 LES 结果是计算的。低驱散保存精力的有限音量计划习惯于 discretize 不可压缩的 NavierStokes 方程。Vremans subgrid 规模(SGS ) 的动态全球系数版本模型被用来计算亚格子压力。Lighthills 声学的类比不可分的 Curles 被用来提取从柱体散发的声音。获得的吝啬的速度和狂暴的变化的侧面与以前的试验性、计算的结果一致。在远地的健全放射展出偶极子和择向性的特征。健全系列显示 \(-5/3\) 幂定律。因为骚乱的 LES 产生了噪音，在有动态过程的同伴的 Vremans SGS 模型才是合适的。

英文摘要：

The flows past a number 3900 are simulated circular cylinder at Reynolds using large-eddy simulation （LES） and the far-field sound is calculated from the LES results. A low dissipation energy-conserving finite volume scheme is used to discretize the incompressible Navier- Stokes equations. The dynamic global coefficient version of the Vreman＇s subgrid scale （SGS） model is used to com- pute the sub-grid stresses. Curie＇s integral of Lighthill＇s acoustic analogy is used to extract the sound radiated from the cylinder. The profiles of mean velocity and turbulent fluctua- tions obtained are consistent with the previous experimental and computational results. The sound radiation at far field exhibits the characteristic of a dipole and directivity. The sound spectra display the -5/3 power law. It is shown that Vreman＇s SGS model in company with dynamic procedure is suitable for LES of turbulence generated noise.