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Two-fluid large eddy turbulence model is applied to research the movement of the sand clouds in quiescent water.

本文采用双流体大涡紊流模型对静水中泥沙云团下落过程进行了研究。

Research on large eddy simulation for water quality;

水质大涡模拟数学模型研究

Velocity estimation model for Large Eddy Simulation;

速度估计模型在大涡模拟中的应用

Large Eddy Simulation of Turbulent Buffet Forces in Flow Induced Vibration;

用大涡模拟计算流致振动的流体激励力

Large-eddy simulation of premixed combustion and validation of the combustion model;

预混燃烧大涡模拟和燃烧模型的检验

Two-fluid large-eddy simulation of backward-facing step gas-particle flows and validation of second-order-moment two-phase turbulence model;

后台阶气固流动的双流体大涡模拟和二阶矩两相湍流模型的验证

Dispersion of heavy dust-particulate was simulated by means of a Lagrangian stochastic model with turbulence fields of convective boundary layers (CBL) derived from a large-eddy simulation model.

　用拉格朗日随机模式 (LagrangianStochasticModel)结合大涡模拟所得对流边界层三维湍流场的时间序列 ,研究沙尘类重粒子在大气中的扩散特性。

Using the large eddy simulation(LES) technique,simulation of the flow field around the elbow in riser system of subsea pipeline is conducted as a case study of CB 306 well group platform in Shengli oilfield.

以胜利油田CB306井组平台为例,运用大涡模拟(LES)方法对海底管道立管系统弯管段周围流场进行了模拟分析,结果表明:海流流速在立管两侧增大,在立管后方形成交替脱落的漩涡;立管后方形成的三维立涡成倒锥形,上部漩涡比下部漩涡先脱离立管;三维立涡底部海水对海底的剪切作用及对海底沉积物的提升作用最强,这也是海底冲淘作用不断加剧的根本原因。

The flow features of a self-excited precessing jet,which was generated based on the wall attachment effect,were analyzed in the paper;and the large eddy simulation(LES) approach was used to numerically study the flow inside a precessing jet nozzle.

分析了基于流体附壁效应而自激产生的旋进射流的流动特征,采用大涡模拟(LES)方法研究了射流喷嘴内部的流场。

A high accurate finite volume method of non-uniform meshes for large eddy simulation(LES) is presented in order to precisely predict complex incompressible turbulent flows.

为准确预测不可压复杂边界的湍流流动,本文应用高精度有限体积法对曲面边界湍流进行了大涡模拟。

As an effective method for study of turbulent flow and turbulent combustion, large eddy simulation (LES) is widely used in recent y6ars.

大涡模拟作为一种研究湍流流动和湍流燃烧的有效手段，在国际上已经得到广泛应用。

The large eddy simulation (LES) was used to simulate the turbulence of the continuous phase,where the motions of the large scale structures were solved directly through the incompressible Navier Stokes equations and the effects of the unresolved scales were modeled by the standard Smagorinsky sub grid scale model.

以Re数为 130 0 0的平面不可压缩湍射流流动为例 ,气相场采用大涡模拟 ( large- eddy simulaiton,L ES)技术 ,直接求解大尺度涡运动的 Navier- Stokes方程 ,小尺度涡采用标准 Smagorinsky亚格子模式模拟。

Under the requirements, large eddy simulation (LES) is used to simulate the three-dimension fluid flow in wave blocker of marine inlet filter.

为满足现代舰船对进气过滤系统越来越高的要求,针对进气滤清器的防浪级进行了大涡模拟(Large EddyS imu lation)。

Evolution of coherent structures in boundary layer with pressure gradients;

大涡结构在有压梯度边界层流中的演化机理

The stability of 3-D plane boundary layer with local distributed roughness and the cause of coherent structures in shear flow are studied in detail.

本文利用x及y方向变间距的高精度紧致有限差分及z向Fourier谱展开相结合的方法，数值求解三维、非定常、不可压的Navier-Stokes方程，详细研究了壁面局部粗糙边界层的稳定性问题和近壁剪切流中大涡结构的成因机制。