涡

The model was used to explain the influence of the effect of engulfment and mixture of fuel and the air at jet boundary under the extinction critical conditions. The spatial correlation analysis of concentration field revealed the existence of large scale vortexes with self-similarity of distribution and size.

另外，通过对射流浓度场的空间相关性分析发现，在射流内部存在着自相似的大尺度浓度团，对大量动态图像的统计分析表明，这些涡团结构在不同的射流高度上的分布和尺度均有自相似性。

Numerical simulation of motion and bubble entrainment of vortex ring［J］.

涡环发展及其与气泡相互作用的数值模拟［J］。

First of all, some structure parameters, such as the dimension scale of cavity walls, thelocation of primary flow injection holes, the entrance angle of main flow, and so on, havebeen studied, focusing on their influence to the cavity flow field, the forming of vortexes,and the pressure drop in the combustor.

首先研究了模型燃烧器中凹腔长度与前后壁面高度比例、腔内燃料与空气的入射位置、以及主流入射角度等结构参数对腔内流场变化、驻涡形成、以及燃烧器压损等方面性能的影响。

I leave large leaves of kale and escarole in the tubs constantly so they can browse on them when the salad gets eaten.

我经常把卷心菜和涡荬的大叶子留在木箱里，因此他们在他们可以边吃边看。

Suggestions are:cucumbers,tomatoes,green and yellow squash,apples,melons of all types,peppers,carrots,peaches,pears,berries of any kind,sweet potatoes,Opuntia cactus fruits,mushrooms,radicchio,kale,escarole,any types of lettuces,various types of flowers,and plant leaves.

建议是：黄瓜，蕃茄，绿叶菜和黄南瓜，苹果，所有类型瓜，胡椒，红萝卜，桃子，梨，所有种类，白薯，仙人掌仙人掌莓果结果实，蘑菇、菊苣、任何类型卷心菜、涡荬、莴苣的花的各种各样的类型和植物叶子。

Suggestions are: cucumbers, tomatoes, green and yellow squash, apples, melons of all types, peppers, carrots, peaches, pears, berries of any kind, sweet potatoes, Opuntia cactus fruits, mushrooms, radicchio, kale, escarole, any types of lettuces, various types of flowers, and plant leaves.

建议是：黄瓜，蕃茄，绿叶菜和黄南瓜，苹果，所有类型瓜，胡椒，红萝卜，桃子，梨，所有品种，白薯，仙人掌仙人掌莓果结果实，蘑菇、菊苣、任何类型卷心菜、涡荬、莴苣的花的各种各样的类型和植物叶子。

It has its symbolic meaning, this text educe to circle whorl ornamentation from faience pottery dermatoglgphic pattern.

圆涡纹作为彩陶装饰纹样的一种具有其本身的象征意义。

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。

Associated Spring Raymond manufacturer that specializes in producing washers compression spring, extension spring, torsion spring, battery spring, conical spring, garter spring, constant force spring, disc spring, urethane and gas spring, Belleville, curved finger and wave washers, disk spring, clip nuts, rings, kits and specially fasteners, Precision stampings and etc. and acquired International CE certificate, TS 16949, QS9000 and ISO 9001 certificated.

至今已在美国、巴西、墨西哥、加拿大、英国、法国、德国、荷兰、瑞典、新加坡、上海、天津、日本、台湾、香港等地设有工厂及办事处，目前可生产各种标准和非标的精密弹簧、模具弹簧、碟形弹簧、氮气弹簧、蛇形弹簧、涡卷弹簧、机械弹簧、热卷弹簧；冲压件和紧固件等精密元件，并通过了QS9000和TS16949，ISO9001等质量认证体系，广泛用于电子通讯、汽车、电器、机械及设备、塑胶、模具、军事、航天、海运业、医学、生物化学等工业领域。

Thus LES is proved to be suitable to simulate the flow and temperature fields of large scale vortices with complex geometric boundaries. LES cooperated with the second order full extension ETG finite element method is applied to simulate the forced convection heat transfer around two square cylinders arranged side by side. While the boundary conditions are symmetrical, the time history and power spectrums of drag coefficient, lift coefficient, averaged Nusselt number at the wall, and the streamwise velocity and temperature on the symmetrical points are calculated. The results show that the power spectrums are all almost symmetrical.

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间距比为1.5的条件下横掠并列双方柱强制对流换热问题进行了数值模拟，通过边界条件对称时，对并列双方柱对称点上的速度和温度以及方柱的阻力系数、升力系数和壁面平均Nu数进行的时域分析和频域分析，得到了在对称边界条件下并列双方柱对称点上的速度和温度以及方柱的阻力系数、升力系数和壁面平均Nu数的功率谱均基本对称的结论。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐