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- Ordinarily, the thickness of velocity boundary layer and grid Reynolds number are used as the delimitating standards for flow field and aerothermal heating computations respectively. 通常的做法是,对于流场计算以速度边界层厚度作为法向网格尺寸划分标准,对于热流计算则根据网格雷诺数确定网格尺寸。
- The conclusions are as follows: at entrance, the thickness of the LFF of the developing regions increases very fast, and then increases slower till it intersects with the velocity boundary layer. 本文主要结论是:在入口处,液膜发展段边界层厚度的增长与减小很快,此后这种趋势沿流向减缓,直到在下游某处与速度边界层厚度曲线相交,其后成为定型段,膜厚及其流动特性不发生改变;
- Consequently, a new delimitating standard of grid in normal direction is proposed here synthesizing distribution of temperature and velocity boundary layers. 因此,在高马赫数情况下,特别是想利用温度场计算热流时,不能只考虑用速度边界层的厚度来确定法向网格尺寸,必须综合温度边界层与速度边界层的分布特征来确定法向网格尺寸。
- velocity boundary layer 速度边界层
- Sound Propagation in the Nocturnal Boundary Layer. 夜间边界层中的声传播。
- As the velocity in the nozzle throat is sonic, the effect must be transmitted upstream through the boundary layer. 当喷管喉部达到音速时,这种影响一定是通过附面层向上传播而引起的。
- Detecting the Vertical Velocity in the Atmosphere Boundary Layer in Hefei Using Sodar[J]. 引用该论文 徐小峰;翁宁泉;肖黎明;孙刚.
- The friction brings about boundary layer effect in the sides of slice section of headbox and makes the velocity of ejection pulp from the headbox uneven. 在流浆箱唇板区两侧由于摩擦力作用引起边界层效应,从而导致了喷浆不均匀。
- Detection of Boundary Layer Water Clouds by Spaceborne Cloud Radar. 用机载云雷达探测边界层含水云。
- Beyond the boundary layer, the motion is highly irregular. 超出边界层以外,流体的流动非常没有规律。
- Formulation of Turbulent Fluxes in the Stable Boundary Layer. 稳定边界层中湍流通量算法。
- Stull, R.B., 1988: An introduction to boundary layer meteorology. 任平,2003:影响大气污染物散布的气象条件。
- As the air proceeds along the test section the boundary layer thickens. 当空气沿着试验段流动时附面层逐渐变厚。
- Abstract : According to 1st order slip velocity boundary, Reynolds equation for micro gas journal bearings was given with consideration of effective viscosity under rarefied gas condition. 摘要 : 基于1阶滑移速度边界,考虑到稀薄条件下气体的有效黏度,给出了气体径向微轴承润滑雷诺方程。
- Ekman vertical velocity of atmospheric boundary layer was calculated by using GCM data and the new Ekman Pumping formula given by Tan(2000),in which complex boundary was included for stratified atmosphere. 利用GCM模式资料和Tan最新得到的具有复杂边界的层结大气边界层的Ekman泵公式 ,计算了大气边界层顶的Ekman垂直速度。
- Based on the assumption of logarithmic velocity distribution within turbulent boundary layer and the aplication of energy equilibrium theory, formulas for Hydraulic parameters are obtained in this paper. 在紊流边界层内,流速为对数分布假定的基础上,本文利用水流能量平衡方程计算紊流边界层沿流程发展的厚度从而推导出溢流面一些水流参数的计算公式。
- The Contribution of Shear to the Evolution of a Convective Boundary Layer. 切变对对流边界层演变的作用。
- The first two are indirect methods in as much as they rely on measurements of overall torque or resistance and boundary layer similarity laws to obtain DU+, whereas the velocity profile method provides a direct measurement of DU+. 首两个是间接的方法一样因为他们依靠的测量整体扭矩或阻力和边界层相似性法律以取得杜+而流速剖面法提供了一个直接测量杜+。
- A systematic study of TiO2 ceramic boundary layer capacitor (BLC) ismade. 本文对TiO_2陶瓷晶界层电容器进行了较为系统的研究。
- To solve this problem, a boundary layer suction test is carried out. 为此,本文采用附面层抽吸技术对其进行了地面抽吸状态下的流场控制试验研究。