为了加深对复杂流动混合现象的认识，为化工设备设计提供理论基础，用大涡模拟方法对可压缩气体混合层进行了三维数值模拟。
To offer a theoretical foundation for chemical equipment design, three-dimensional numerical simulations are made for compressible turbulent mixing shear layer based on large eddy simulation(LES).
阐述了二维弱可压缩流体流动控制方程和大涡模拟湍流模型。
The weakly compressible fluid control equations and the large eddy simulation turbulence model are expounded.
在将大涡模拟(LES)应用到工程实际时，面临着两个主要难点：LES对格式要求高和计算量大。
On applying large eddy simulation (LES) to practical interest, the main difficulties were high requirement of numerical schemes and huge computational cost.
计算中采用了不同的大涡模拟系数。
Different large eddy simulation coefficients were adopted in the calculation.
在此基础上，提出了基于近壁区相干结构流动参数的新型大涡模拟壁面模型。
Based on the coherent structures, a new type of wall model for large-eddy simulation (LES) was established.
采用大涡模拟方法对一条双机双桨船舶机舱火灾进行数值模拟。
In this paper, the large eddy simulation method is used to simulate fire in a ship engine-room.
为此，搭建了微机并行计算平台，解决了大涡模拟对计算资源要求；
Therefore, the paper establishes the parallel computing platform and meets the demand of computing resources for large eddy simulation.
在传统大涡模拟算法的基础上引入显式滤波技术，有效地控制了截断误差。
The data with explicit filtering were compared with the results from the traditional large eddy simulation approach.
采用大涡模拟方法研究了存在逆温层的情况下大气对流边界层的湍流特性。
The turbulent characteristics in convective boundary layer topped temperature inversion were numerically investigated in terms of large eddy simulation.
本文对浮力作用下的矩形射流扩散燃烧过程进行了三维大涡模拟。
The buoyancy effects on horizontal jet diffusion flames are investigated using large eddy simulation.
笔者的模拟和研究表明：大涡模拟可较准确地预测高层建筑管道井内烟气的流动状态，对高层建筑的防火设计具有指导性作用。
It is found that large eddy simulation could more accurately predict the smoke movement in pipe shaft and guide the fire fighting design of high rise building.
本文对后台阶分离流动中涡结构的演变进行了大涡模拟，研究了流场结构的变化规律。
In this paper, the evolution of eddy structures in the backward-facing step flow was studied by using large eddy simulation.
本文采用三种不同亚网格尺度模型对带有V型稳定器的模型燃烧室二维瞬态紊流流动进行了大涡模拟。
The transient turbulent flows were predicted by large eddy simulation in a model combustor with a V gutter flame holder.
应用紊流大涡模拟方法对建筑物环境风场进行了数值模拟。
The large eddy simulation approach is applied to airflow field around buildings.
采用大涡模拟方法可以分析和计算近地阶段尾涡消散和运动规律，但模型繁琐、计算复杂。
The large eddy simulation methods can be used to analysis and calculate the decay and transport rules of wake vortex in near ground phases, but it′s too complex and difficult to use.
应用自主开发的大涡模拟程序数值模拟研究了后台阶流动中再附着过程的演变。
The re-circulation and reattachment process in backward-facing step flow is investigated using large eddy simulation (LES).
结合实验完成了狭长式地下受限空间火灾的大涡三维数值模拟分析。
Meanwhile, the large eddy numerical simulation (LES) analysis on the fire process of the narrow and long underground confined space is accomplished based on the experiments.
建立了微可压缩流理论和大涡模拟方法相结合的空化流数学模型，为四川大学工学博士学位论文孔板泄洪洞空化初生的研究开辟了一条新途径。
Established a mathematical model to simulate the instantaneous flow fields and cavitation by combining the weakly compressible fluid theory and the Large Eddy Simulation method.
结果表明，采用大涡模拟方法结合多单元区域模拟是研究火灾烟气运动规律的发展趋势。
The results show that it is a development trend of smoke movement law studying by using large eddy simulation (LES) with cell-zone method.
为了研究结晶器内钢液涡流现象的形成机理，采用大涡模拟方法对此涡流现象进行模拟。
A unsteady large eddy simulation was used to model molten steel flow in a continuous casting mold to analyze the vortex flow.
摘要 ：针对马赫数为1.95的欠膨胀超声速喷流声辐射特性，采用高精度计算格式的大涡模拟（LES）方法进行数值研究。
Abstract : Acoustic radiation from a supersonic underexpanded jet with a designed exit Mach number 1.95 is investigated using large eddy simulation (LES).
在三维任意曲线坐标系下采用不同的亚网格燃烧模型对环形燃烧室火焰筒气液两相湍流瞬态反应流进行大涡模拟。
Two different subgrid-scale combustion models were used for the Large-Eddy Simulation (LES) of turbulent chemical reaction flows in a model combustor with V-gutter flame holder.
该文利用大涡模拟，对可压缩流体绕经安装在方管底部的长方体和矩形体的绕流现象进行了三维数值模拟。
The large eddy simulation is applied to simulate a 3-d square channel compressible flow around a wall-mounted rectangle cylinder.
用大涡模拟计算了一个没有通风的室内商业街火灾的烟气流动。
Smoke movement during fire in a mall without venting was simulated by large eddy simulation (LES) model.
采用加密网格的大涡模式获取边界层风、温场的高分辨率模拟结果，并据以分析近地面层大气的湍流特性。
Refined grids were utilized in a large-eddy simulation (LES) model for obtaining high-resolution planetary boundary data and analyzing surface layer turbulence.
对带V型火焰稳定器的模型燃烧室中气液两相化学反应流动进行大涡模拟（LES），研究中采用了欧拉-拉格朗日方法。
The gas-droplet two-phase reacting flow in a model combustor with the V-gutter flame holder is studied by an Eulerian-Lagrangian large-eddy simulation (LES) approach.
本文应用湍流大涡模拟方法对三维空间的弯管流进行了数值模拟。
The numerical simulation for a three-dimensional curved duct flow was carried out by means of the large eddy simulation (LES).
本文应用湍流大涡模拟方法对三维空间的弯管流进行了数值模拟。
The numerical simulation for a three-dimensional curved duct flow was carried out by means of the large eddy simulation (LES).
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