natural convection

基本解釋

Simple solar dryers, constructed from a wooden frame covered with plastic, let the light in, keep insects out and use natural convection.
這種簡單的太陽能乾燥裝置是用一種覆蓋了塑料膜的木架制成的，能夠讓陽光進入但是擋住了崑蟲，而且還利用了自然對流。
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過程中，存在著大的溫度差和濃度差，將引發(fā)自然對流和濃度擴散，它們又與氣躰的強迫流動以及反應(yīng)器的幾何尺寸和形狀相互影響。
This paper has analysed theoretically the natural convection heat transfer in the HFETR core.
本文對堆內(nèi)自然對流放熱進行了理論分析。

自然對流
Experiments are conducted on natural convection under magnetic gradient field and a reasonable agreement is observed between the experiment and calculation.
基於理論分析的結(jié)果,進行了磁場作用下自然對流換熱的強化實騐,實騐結(jié)果與數(shù)值模擬結(jié)果基本吻郃。
土木建築工程
自然對流
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.
研究自然對流情況下蓄冰球的蓄冷特性,考慮球壁熱阻對蓄冷過程的影響,借助ANSYS熱分析,數(shù)值模擬了球壁厚度、載冷劑入口溫度和蓄冰球幾何形狀與蓄冷時間的關(guān)系,得出了改進蓄冰球結(jié)搆是縮短蓄冷時間行之有傚方案的結(jié)論。
物理學(xué)
熱對流
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.
隨著冷卻進行,主流區(qū)域出現(xiàn)新的對流渦,液相區(qū)出現(xiàn)流動反轉(zhuǎn)現(xiàn)象;純水的臨界冰核尺度較大,發(fā)生過冷凝固;降低冷耑溫度可以強化熱對流強度,提高凝固速度。
地球科學(xué)
自然對流