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Abstract An effective method of obtaining a stable free surface flow with liquid metals is very important in terms of ensuring reliability of nuclear fusion devices. In this work, a… Click to show full abstract
Abstract An effective method of obtaining a stable free surface flow with liquid metals is very important in terms of ensuring reliability of nuclear fusion devices. In this work, a miniature experimental apparatus was built and the characteristics of liquid-metal free surface flow and laminar convective heat transfer on different surface structures were experimentally investigated. The results show that, within a certain velocity range, Galinstan can flow in the form of an even liquid film on an acid-pickled stainless-steel surface. As the Galinstan flow rate increases, the convective heat transfer coefficient increases. Finally, a heat transfer correlation of free surface flow was proposed for the liquid-metal Galinstan.
Journal Title: Experimental Thermal and Fluid Science
Year Published: 2017
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