Triggering and evolution of winter-time natural convection cooling effect in fractured-rock revetment embankments of the Qinghai-Tibet Railway are investigated by means of an air-flow function.

导出适用于变渗透率多孔介质的无量纲控制方程，并针对青藏铁路工程建设，分析了碎石护坡路堤冬季自然对流降温效应的产生和演化过程。

youdao

In addition, mute oil free compressor USES air convection principle, to achieve the natural cooling effect.

另外，静音无油空压机采用空气对流原理，达到自然冷却效果。

youdao

Three-dimensional physical and mathematical models for the coupled heat transfer of natural convection in a liquid pool with heat source and forced convection in cooling coil tube are established.

建立了含内热源的液池内自然对流与冷却盘管内强制对流耦合传热的三维物理、数学模型，进行了相应的数值模拟计算。

youdao

The new Generation III reactors such as the AP1000 have a simplified "passive" cooling system where the water circulates by natural convection with no pumping required.

WSJ: William Tucker: Japan Does Not Face Another Chernobyl