查询词典 vortex sheet

Equation (3) The expression changing the magnetic field, generating electrical fields, this field is a "vortex field", This is the Faraday's law of electromagnetic induction extended to the general situation results.

方程式（3）表述变化着的磁场产生电场，这种场是一种"涡旋场"，这是将法拉弟电磁感应定律推广到普遍情况的结果。

At first, numerical simulation are made on the temporal developing gas-phase mixing layer where the convective mach number is in the region of subsonic(0.5) and transonic(0.8). For the temporal problem where Mc is 0.5, researches where the computational field contains different numbers of initial disturbances(so-called n period problem) are made respectively, and vortex's types of evolution in mixing layer including different numbers of initial disturbances are investigated; For the temporal problem where Mc is 0.8, the distinct shock let structure is obtained, and its mechanism is analyzed at the same time.

文中首先对对流马赫数为亚声速(0.5)、跨声速(0.8)的时间发展单气相混合层作了数值研究，对Mc为亚声速单气相时间发展混合层，分别研究了计算域包含不同数目的初始扰动周期问题，考查了不同周期数的混合层中涡的不同演化方式；对Mc为跨声速的单气相时间发展混合层，得到了清晰的小激波结构，同时分析了小激波的形成机理。

LES cooperated with the second order full extension ETG finite element method is applied to simulate three typical problems concerned with convection heat transfer with sufficient experimental data. By comparing the numerical results with the experimental results, LES is proved to be of better accuracy and stability when it is used to solve the problems concerned with convection heat transfer. The time history of the flow field and temperature field can be reflected better, and abundant information of the fields can be obtained. Furthermore the details of the change in the vortex structure can be captured.

应用大涡模拟与二阶全展开ETG有限元离散格式相结合的方法对具有实验基础的三个典型对流换热问题进行了数值模拟，并将模拟结果与相应的实验结果进行对比，证明了大涡模拟应用于对流换热问题中具有较高的稳定性和精度，能够较好地反映流场和温度场的时变过程，提供丰富的温度场和流场信息，捕捉流场中旋涡结构的变化细节，尤其适合于边界形状复杂的区段内含有大尺度各向异性涡的流动和换热问题的计算。

Based on the first and second law of thermodynamics, entropy generation theory is applied to establish vortex tube model.

根据热力学定律，采用最小熵产分析方法，建立了涡流管的热力学模型，得出了产生所需冷热端温度同最小压比之间的函数关系，并在h—s图上表示出涡流管能量分离热力过程。

Generally,the best efficiency is obtained in second order vibration mode of the fishtail,and the reverse Karman Vortex Street wake is observed with corresponding frequency.

在一般情况下当外磁场以系统的二阶固有频率工作时其工作效率最佳。在此情况下鱼尾摆动产生了推力型反卡门涡街形态的尾迹涡流。

The nonuniform induced velocity distribution on the rotor disk is derived from the fixed vortex theory.A sample calculation of a typical...

本文以其典型直升机为算例，计算了直升机对大气紊流的响应，并分析各紊流分量对直升机响应值的影响。

The model of folded plate flocculator is the test object in this paper. Using the the mechanism and dynamic of coagulation precipitation, vortex of fluid of folded plate flocculator impacting on the coagulation process is studied by test, numerical simulation and theoretical analysis.

论文以折板絮凝池模型为试验对象，结合絮凝机理，采用试验测试、数值模拟及理论分析相结合的方法，对影响絮凝沉淀过程的折板絮凝池中水流涡旋进行了研究。

Sharp relief the outline by the polished oak or walnut made of ebony in the late decorative panels, like the Imperial Palace has the chair back, straight handrails, and has spin into spherical, cylindrical spiral or railings of the legs, with bun-shaped or Dutch whirlpool foot ornaments, the use of painted wood inlay works fine, hawksbill shell, gold-plated metal, mother-of-pearl, ivory, furniture component parts produced by Spain Cordoba leather, velvet, needlework lace, brocade and tassels and other decorative ornaments, decorative patterns has olive branches, laurel leaves, leaf foil labeled as the vortex, the Arab-style patterns, roses decorated, whirlpool floriation, round carving, shell, monster.

夏普救援抛光橡木或乌木在后期装饰板核桃皇宫一样，大纲有椅子，直扶手，并已成为球形，圆柱形螺旋或腿栏杆的馒头，形或自旋荷兰漩涡脚饰，木材的镶嵌画使用工作正常，玳瑁壳，镀金金属，母珍珠，象牙，家具零件，西班牙科尔多瓦皮革，天鹅绒生产的零部件，刺绣花边，锦缎和流苏等装饰饰品，装饰图案的橄榄枝，月桂叶，叶箔作为涡，阿拉伯风格的图案，玫瑰花饰，漩涡花饰，圆雕刻，贝壳，怪物的标签。

This paper introduces the principle and characteristics of SMS, the hardware and software design of vortex flowmeter.

本文介绍了短消息业务SMS的原理及特点、涡街流量计的硬件设计和软件设计。

This paper focuses on the studies of the digital signal processing methods of the vortex flowmeter.

为了选择合适的数字信号处理方法，研究了涡街信号模型。

My father is over 60 years old, and he lifts weights every day.

我爸爸六十多岁了，他每天都练习举重。

Then in a serious tone she declared:"It doesn't pay, dear boy, to look like a ninny with one's wife the first night."

两眼湿润了，她把身子蜷得很小，这样似乎可以更好地闻闻自己。