空气流动速度

单束激光-连续超声波空气流动速度测量方法

A New Single Beam Laser-Continuous Ultrasonic Wave Method for Air Velocity Measurement

主要研究新鲜空气流动速度与阴燃波的传播速度和反应温度之间的关系，也探讨了正向阴燃与反向阴燃之间的异同。

The main goal is to study the effects of the forced air velocity on the propagation velocity and reaction temperature of the smoldering wave .

降低冷却前重轨初始温度、减小冷却过程空气流动速度可以起到减小冷却后重轨弯曲度、减小重轨断面尺寸收缩量及减小重轨断面尺寸收缩的不一致程度的作用。

Reduce the initial temperature and reduce the air flow rate of cooling can reduce the curve degree of heavy rail after cooling , reduce section size shrinkage rate of heavy rail after cooling .

板料温度越高，空气流动速度越大，换热系数越大。（2）间隙传导可视为多层材料传导和热辐射的综合作用。

The higher the material temperature and the greater the flow rate of air , the greater the heat transfer coefficients . ( 2 ) Gap conduction can be regarded as the comprehensive effect of the multilayer material conduction and heat radiation .

用FIDAP软件模拟了一典型大空间建筑空调采用置换通风送、回风口同侧布置、异侧布置的室内空气流动的速度场和温度场。

Velocity field and temperature field of replacement ventilation of air-conditioning in a typical large space building are studied using FIDAP software .

同时水和空气的流动特性、速度大小等非常相似。

Meanwhile , the characteristics and velocity of water flow and air flow were very similar .

通过对比分析发现加湿燃烧情况下回流区的长度减小：加湿燃烧空气主流区的流动速度比不加湿燃烧的速度低；

By contrast , we find that the length of recirculation zone is diminished appreciably on the humid air combustion condition . The flow velocities in the air main flows zone in the humid air combustion are lower than that of in no-humid air combustion .