Triggering and evolution of winter-time naturalconvectioncooling effect in fractured-rock revetment embankments of the Qinghai-Tibet Railway are investigated by means of an air-flow function.
In addition, mute oil free compressor USES air convection principle, to achieve the naturalcooling 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。
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Three-dimensional physical and mathematical models for the coupled heat transfer of naturalconvection in a liquid pool with heat source and forced convection in cooling coil tube are established.