查询词典 velocity

ABSTRACT In this paper, an investigation on the helical ports was carried out in a steady-flow rig. The three velocity Components of air flow through the intake valve of several typical helical ports were measured by hot-wire anemometry for analysing the relationships between intake port geometry and swirl level as well as flow resistance.

本文在稳流气道试验台上对螺旋进气道进行了大量的研究，为了分析螺旋进气道的结构形状与涡流强度及流动阻力的关系，采用热线风速仪测量并分析了不同气道的气门口气体流速。

The experimental setup for the turbulent jets in crossflow is designed, and the hot wire anemometry IFA 300 is used to measure the velocity field and the turbulent kinetic energy, and the computational result matches experimental measurement reasonably well. The experimental result is very important in the analysis of the flow field, deduction of the equation of the jet trajectory, check of the turbulence model and validation of the numerical method.

首先，建立了用于测量横向紊动射流的实验台，并利用IFA 300型热膜风速仪系统测量了多种工况下的流场，并将速度、湍动能结果与数值计算结果进行了比较，实验结果与数值模拟结果吻合较好，从而为分析流场特性、确定射流轨迹、比较湍流模型以及验证数值计算方法提供了依据。

By using Laser Doppler Anemometry, the local liquid velocity profiles of the single-phase flow and two-phase crossing flow were measured on a sieve tray simulator. The effect of gas on liquid under crossing flow was studied.

本文通过使用激光多普勒测速仪对矩形塔板上液相单相流和气液错流情况下的局部液相流场进行测量，考察了气液错流时气相对其周围局部液相流场的影响。

The axial velocity and stagnation point offset of two opposed jets coming from two asymmetric nozzles oppositely located with large separation distance were studied by using hot-wire anemometry.

采用热线风速仪对大喷嘴间距下两不对称喷嘴形成的对置撞击流的轴线速度分布和驻点偏移规律进行了实验研究。

Portable anemoscope was used to get the spray velocity and d was verified with laser phase Doppler particle anemometer.

采用风速计测量了喷雾速度，以及相位多普勒粒子测速仪测量验证了d。

Under the condition of anthropogenic heat investigation, the velocity and temperature profiles measured with three-cup anemoscope and hygrothermograph and the surface air temperature profile calculated by CTTC model, the distribution of flow and temperature fields were simulated.

以对小区内的人为热估算结果作为内热源，对西安市典型小区测量获得的风温廓线和利用改进的CCTC模型计算获得的小区地表温度分布作为主要边界条件，计算分析了小区流场和温度场的时空分布规律。

Portable anemoscope was used to get the spray velocity and dsauter was verified with laser phase Doppler particle ane...

采用风速计测量了喷雾速度，以及相位多普勒粒子测速仪测量验证了dsauter。

First, the velocity and temperature data were collected in the period of simulation using three-cup anemoscope and hygrothermograph in different heights. Then Monin-Obkhov wind and temperature vertical profile were fitted by applying least square solution. Temperatures of different time in specific point were measured. Firsthand information in land surface was collected and anthropogenic heat profile of different time was investigated.

首先，利用在不同高度上面设立的三杯风速仪和温湿度计收集了两个计算模拟时段的风速和温度资料，然后采用最小二乘法拟合得出Monin-Obkhov风温廓线；在区域内布点测量不同时段的温度值，收集地表的一些原始资料；调查区域内的不同时段的人为产热分布。

Cleavage velocity and fragment amount of embryo were related to chromosome 21 aneuploidy.

胚胎卵裂的速度和胚胎碎片的多少与胚胎内部染色体的非整倍性存在着相关性。

Driver system for the stability of nonlinear and non-use of the theory of linear quadratic control law studies, select the ball location, speed and rod angle, angular velocity of the four variables as state variables, output variables for the ball position and bar angle, the establishment of linear state space equation and after the designs of clubs based on LQR control law, the design process simple and easy to realize the control law, simulation results show that the linear quadratic regulator robustness and stability.

球杆系统翻译，求高人针对球杆系统的非线性和不稳定性运用最优二次型理论进行控制律的研究，选取小球位置、速度和横杆角度、角速度四个变量为状态变量，输出变量为小球的位置和横杆的角度，建立状态空间方程并进行线性化后设计了基于LQR的球杆系统控制律，设计过程简单，控制律的实现容易，仿真结果表明了最优二次型调节器的鲁棒性和稳定性。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。