The main parameter of heat convection process is heat transfer coefficient.

反映对流换热过程特性的主要参数是对流换热系数.

It is difficult to explain these characteristics by the plate tectonic theory based on the heat convection in earth mantle.

想用板块构造理论解释遍布大陆地块内部的褶皱构造，在形位特征与动力机制上都有难以解决的矛盾。

In the formation there is only horizontal thermal exchange with vertical thermal exchange ignored. In the wellbore there is only heat convection with heat conduction ignored.

其中地层中只有水平方向的热传导，忽略垂直方向上的热传导，井筒中仅考虑流体的热对流，忽略热传导。

Based on heat convection and conduction theory, energy balance equations, and IGSHPA method, develops a concise algorithm model for the design of buried vertical pipe heat exchangers.

根据对流换热、导热理论和能量平衡方程，在借鉴IGSHPA模型方法的基础上，得出了地埋管换热系统设计的简明算法模型。

In the decay stage of heat convection, the height of convective is decreased, and the vertical movement is getting gentle and lasts for very long time.

在热对流消退期，对流高度逐渐降低，上升运动变得相对和缓并维持较长时间。

The large eddy simulations using a Smagorinsky subgrid model are carried out with FLUENT to study the transient flow field in channels and the influence on heat convection.

在此基础上，应用大涡模拟的方法对通道内的瞬态流场及其对壁面对流换热的影响进行了研究，并将数值模拟与实验进行了比较。