1.Detached-Eddy Simulation combines the strong points of Reynolds-averaged Navier-Stokes and Large Eddy Simulation approaches.
DES方法结合了RANS(Reynolds-averaged Navier-Stokes)和LES(Large Eddy Simulation approaches)的优点。
2.The detached eddy simulations or DES is a hybrid turbulence modeling method which combines the efficiency of RANS turbulence model and the accuracy of large eddy simulation into one framework.
分离涡模型(DES,Detached eddy simulation)兼有雷诺时均湍流模型计算量较小和大涡模拟计算精度高的优点。
3.It is found from the time- depth diagram of temperature and density that the isotherm and the isopycnal, sometimes, present the characteristics of oscillation with a 10m amplitude and 3 day period as well as the characteristics of submesoscale eddy or eddy chains.
在上述深度范围内亦存在较低盐度和温度水体侵入现象,其强度存在10—15d的周期变化。 等温线和等密度线常出现振幅达10m以上,周期约3d的振荡,而且有时表现出次中尺度涡(submesoscale eddy)及涡旋链特征。
4.Moreover, as a kind of turbulent model, Large Eddy Simulation (LES) can capture the transient flow information of every phase, which has attracted more attention.
特别是近几年发展起来的大涡模拟模型(Large Eddy Simulation, LES),由于可以捕捉到流场内各相很强的瞬态运动信息而倍受关注。
5.A simulative calculation was performed of the 3-d flow process of the cold and hot gas flows using the RNG k-ε turbulent flow model and the limited chemical reaction speed rate eddy break up model for the swirl combustion chamber of the 75kW micro-type gas turbine of Applied Signal Corporation.
采用RNGk-ε湍流模型以及有限化学反应速率涡破碎模型(Eddy break up)对Allied Signal公司75 kW微型燃气轮机旋流燃烧室内冷态和热态时气流三维流动过程进行了模拟计算。
6.Based on the computation of eddy transport of atmospheric moisture by using the balloon sounding data collected from 149 meteorologic stations in 1983, some new findings for the feature of eddy transport over the territory of China have been obtained: (1) The routs of eddy transport flux present meridionality, the general direction of eddy transport is similar to that of the moisture gradient tranports atmospheric moisture to arid region in the northwest of the country from its southeast.
利用1983年国内外149个探空站全年资料,系统地研究了中国大陆上空的涡动水汽输送,包括涡动水汽输送的路径、收支量及其时空分布特点。
7.The application limitation of traditional eddy current testing has been discussed in detail, new eddy current technologies such as far field eddy current testing, phase array technology and magnetic saturation and so on were introduced.
摘要突破了传统涡流检测的应用局限，介绍了油罐底板腐蚀涡流检测新技术，如远场涡流技术，相控阵技术和磁饱和技术等。
8.(3)The distribution law of tangential velocity was: the center of eddy belong to enforce eddy move and the distribution law of velocity and pressure obey the law of forced eddy move which should be followed as : u_θ= cr~n, ( n >0> r >1) .
(3)实验结果表明：“装置”内的流动是典型的三维非轴对称流场，其中的切向流速分布规律服从强迫涡运动所遵循的规律，即u_θ=cr~n，(n＞0，r＞1)。
9.The converted greater eddy potential energy, along with the secondary one made by cumulus heating, is further transferred to eddy kinetic energy via upward motion of anomaly warm air, hence enhancing the growth of eddy kinetic energy.
在该过程中转换来的具有最大贡献的涡动有效位能 ,连同具有次大贡献的积云加热制造的涡动有效位能(q?3 )一起 ,通过暖异常区 (α >0 )暖湿空气上升运动 (-ω >0 )的斜压转换 (-ωα) ,促使涡动动能增长。
10.Some formulas are deduced and used to calculate the wastage of eddy current, and analyse factors about magnetic field and wastage of eddy current, at last measures for minishing the wastage of eddy current and the influence of magnetic field are put forward.
本文推导了隔离套中涡流损耗公式，分析了对磁场和涡流损耗的影响因素，提出了减小隔离套涡流损耗及对磁场影响的措施。
