vapor velocity

The temporal and spatial evolution of simulated velocity and cloud microphysics fields show that the coupling of vertical velocity and vapor distribution is a criteria for vapor condensation and freezing that results in snow.

模拟的运动场和云微物理量场的时空演变表明，垂直运动场与水汽场的耦合是水汽凝结和冻结成雪的运动学条件；

Influence of water vapor content and space velocity on the two reactions was also investigated.

此外还考察了水蒸汽含量以及空速的变化对反应的影响。

The droplet trajectories, gas velocity and temperature distribution, mass fraction of the fuel vapor were obtained from the simulation in three different conditions.

计算结果给出了圆管内离心喷嘴逆喷的三种工况下的液滴运动轨迹，气相速度场、温度场、蒸汽的质量分数分布等。

Smaller vapor Knudsen number results in higher velocity and lower relative vapor temperature.

蒸气的Kn越小，蒸气的速度越高，相对温度越低；

With this model, the temperature field, liquid-vapor front and velocity field could be easily simulated, which reveals the physical operational mechanisms of the porous wick.

建立了毛细芯内二维数值模型，该模型包括耦合的热力学和动力学模型。利用该模型可以方便得到毛细芯内的温度场，速度场，可以较精确地跟踪汽液界面的位置。