Large eddy simulation (LES) with dynamic Smagorinsky model (DSM) has been implemented to elicit the turbulence characteristic of the flow inside a cubic lid-driven cavity at Reynolds number of 10000. The coherent organized structures tear, pair and disintegrate leading to the evolution of turbulence. They are reflected in the RMS (root mean square) plots of the turbulent fluctuations in different planes. The flow has a near zero helicity value; unlike the other two velocity component, the probability density function of span wise velocity component shows the flow symmetry on the both side of the mid plane in span wise direction; kurtosis being largely leptokurtic except near wall locations indicates their peakedness. The quadrant analysis shows presence of more coherent structures near the down stream wall and the joint probability distribution function shows that turbulence is anisotropic. Power spectra is observed to follow the $-5∕3$ law. Both Taylor microscale $\left(\lambda \right)$ and Kolmogorov length scale $\left(\eta \right)$ show greater near-wall dissipation

已经采用动态Smagorinsky模型（DSM）进行了大涡模拟（LES），以得出雷诺数为10000的立方盖驱动腔内部流动的湍流特性。相干的有组织结构撕裂，成对和分解，从而导致了演化湍流。它们反映在不同平面中湍流涨落的RMS（均方根）图中。流的螺旋度值几乎为零；与其他两个速度分量不同，翼展方向速度分量的概率密度函数在翼展方向上在中平面的两侧显示了流动对称性。峰度主要是小肽，除了靠近壁的位置表明其峰化。象限分析显示下游壁附近存在更多连贯的结构，联合概率分布函数显示湍流是各向异性的。观察到功率谱遵循$-5∕3$法。两者均为泰勒微尺度$\left(\lambda \right)$ 和Kolmogorov长度刻度 $\left(\eta \right)$ 显示更大的近壁耗散