up-hole velocity

Accustomed models of thermal dispersion used in porous medium and Aquifer Thermal Energy Storage ( ATES) were summarized. The thermal dispersion models can be summed up to two types, one is one power of velocity and the other is multiple of aquifer thermal conductivity.

综述了多孔介质和含水层蓄能中常用的热弥散模型，把热弥散模型归结为两类：速度一次方模型和含水层滞止导热系数倍数模型。

Under the assumption that the electron beam is single-velocity and one-dimensional, the transmission equation of space charge wave set up in the conical electron beam is derived and the process of noise impedance transformation is obtained.

在单速、一维假定下，推导了球形收敛电子注上的空间电荷波传播方程和噪声阻抗的变换过程。

Main contents of this thesis are described as following: 1. Builded up experimental test installation suitable for airfoil blowing experiment, to make sure of good flow conditions, good uniformity of velocity and low turbulence.

本文主要研究内容和研究成果如下：1、搭建了适合翼型吹风实验的实验台，保证翼型良好的来流条件，使其具有良好的速度均匀度和较低的速度湍流度。

Type ⅰ spicule usually goes up with a velocity of25km/ s and falls down to the photosphere in a same or another different path after arriving at the maximum height.

TypeⅠ针状物常以25km/s的速度向上运动，到达最大高度后，沿原路径或另一个不同的路径落回光球表面。

While the comparison of simulated hourly streamline fields shows that radar radial velocity can increase the mesoscale wind circles in the initial fields and mitigate the model's spin-up time significantly.

模拟的1h流场对比分析表明，经雷达径向风调整后，能够在初始场中增加气旋性涡旋等中小尺度风信息，明显减少模式的spin-up时间。