Experimental study is performed on the mist cooling of heated high temperature surface covered by a sand layer to investigate the effects of both sand size and thickness of sand layer on heat transfer charateristics in order to enhance heat transfer of film boiling region 摘要研究了高温金属面上覆盖砂层后的喷雾冷却换热特性，测试了砂粒颗粒大小和砂层厚度对换热特性的影响。
