surface velocity

Calculations and analyses are made on surface pressure, velocity distribution as well as aerodynamic resistance, using Computational Fluids Dynamics software CFX, 3D viscous incompressible Reynolds averaged Navier stokes equations and turbulence model k ε double equation.

运用流体动力学数值计算软件CFX，采用三维粘性不可压缩雷诺平均应力方程和k-ε双方程湍流模型，对200km/h电动旅客列车进行了表面压力、速度分布及空气阻力的计算分析。

互联网摘选

The results showed that compared with the treatment with no litter coverage, the surface runoff velocity was reduced by 57.50%~ 72.27% when the litter coverage varies from 0.0 to 25.0 t · hm~ (-2).

hm-2增加到25.0t.hm-2时，地表径流流速与无枯落物覆盖相比减小了57.50%~72.27%；

互联网摘选

The key of seismic data processing mainly lies in static corrections and imaging and both of them are relative to velocity model in complex near-surface and underground geologic structural conditions.

在复杂地表条件和复杂地质构造条件下，地震资料处理的关键主要表现为静校正和成像，而这两者均与速度模型有关。

互联网摘选

The egg shape surface of third cosmic velocity in all directions

全方位逃逸的第三宇宙速度蛋形曲面

互联网摘选

Analysis of Soft-measurement System for Measuring Solid Surface Velocity

固体表面速度软测量系统分析

互联网摘选

The development of surface engineering and erosion resistant coatings was reviewed. The applications of thermal spray coatings against erosion were introduced. The microstructure and erosion resistance of Fe3AI/ WC coating produced by high velocity arc wire spraying was introduced briefly.

对表面工程及抗冲蚀磨损防护涂层的发展作了述评，重点介绍了热喷涂涂层在冲蚀磨损防护方面的应用，并对高速电弧喷涂Fe3Al/WC复合涂层的组织和高温冲蚀磨损性能作了阐述。

互联网摘选

The impact depth decreased and the cavity height improved with the gas flowrate increased. The improved surface velocity and temperature showed that the upper circulate of the steel was enhanced when blowing argon gas.

随着吹氩量的增大，流股的冲击深度逐渐减小，窝心高度有所上升；结晶器液面速度和温度的提高表明了氩气吹入后，钢液的上循环流动得到了增强。

互联网摘选

The Optical System of the Laser Sensor for Solid Surface Velocity Correlation Measurement

固体表面速度相关测量激光传感器光学系统

互联网摘选

Variations of the surface velocity of the Kuroshio on section g in the East China Sea from 1956& 1975

东海G断面上二十年（1956&1975）来黑潮表层流速的变动

互联网摘选

When flow velocity reaches 2.62 m/ s, the local corrosion is pitting corrosion and the protective corrosion product film can not form on the test coupon surface at the temperature of 100 ℃ and the CO_2 pressure of 0.03 MPa.

在流体速度为2.62m/s的情况下，温度为100℃、CO2分压为0.03MPa时，发生的局部腐蚀主要为点蚀，试样表面未能形成保护性腐蚀产物膜；

互联网摘选

Real-time surface velocity field measurement system and three-dimensional particle velocity measurement system are developed. Systematic experimental research on the movement of coarse sediment particles in open-channel flows was carried out using developed system.

本文研制开发了表面流场实时测量系统和颗粒三维运动测量系统，并采用颗粒三维运动测量系统对明槽水流中粗颗粒的运动进行了系统的试验研究。

互联网摘选

The influence of the thermal stratification and wind velocity on the wind profile in the earth's surface layer

温度层结与风速对贴地层风速廓线的影响

互联网摘选

Research on the Influence of Surface Sound Velocity in Multibeam Echo Sounding

表层声速对多波束测深影响的研究

互联网摘选

The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure.

利用声辐射阻力矩阵和振动面上的速度矢量预报了结构声辐射的总功率。

互联网摘选

The threshold friction velocity over the Loess Plateau depends on the wind direction, due to the complex terrain and inhomogeneous surface.

由于受地形及非均匀下垫面的影响，黄土高原的临界起沙摩擦速度与风向有关。

互联网摘选