natural convection

基本解释

Simple solar dryers, constructed from a wooden frame covered with plastic, let the light in, keep insects out and use natural convection.
这种简单的太阳能干燥装置是用一种覆盖了塑料膜的木架制成的，能够让阳光进入但是挡住了昆虫，而且还利用了自然对流。
Large temperature and concentration differences taking place in CVD process lead to natural convection and concentration diffusion which interact with forced convection and complex reactor geometries.
在CVD过程中，存在着大的温度差和浓度差，将引发自然对流和浓度扩散，它们又与气体的强迫流动以及反应器的几何尺寸和形状相互影响。
This paper has analysed theoretically the natural convection heat transfer in the HFETR core.
本文对堆内自然对流放热进行了理论分析。

自然对流
Experiments are conducted on natural convection under magnetic gradient field and a reasonable agreement is observed between the experiment and calculation.
基于理论分析的结果,进行了磁场作用下自然对流换热的强化实验,实验结果与数值模拟结果基本吻合。
土木建筑工程
自然对流
The encapsulated ice storage is dynamically modeled in natural convection,taking account of heat resistance based on ANSYS. It makes effects on solidification time in condition of wall thickness,refrigerant temperature and geometric structures.
研究自然对流情况下蓄冰球的蓄冷特性,考虑球壁热阻对蓄冷过程的影响,借助ANSYS热分析,数值模拟了球壁厚度、载冷剂入口温度和蓄冰球几何形状与蓄冷时间的关系,得出了改进蓄冰球结构是缩短蓄冷时间行之有效方案的结论。
物理学
热对流
Super-cooling solidification happened because the critical nucleus of ice is of large dimension. The intensity of natural convection can be reinforced with decreasing the temperature of the cooler,so does the velocity of solidification.
随着冷却进行,主流区域出现新的对流涡,液相区出现流动反转现象;纯水的临界冰核尺度较大,发生过冷凝固;降低冷端温度可以强化热对流强度,提高凝固速度。
地球科学
自然对流