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Studies on the heat-transfer characteristics of liquid nitrogen (LN 2) have received increasing attention. When there is a transient high heatflux input to the LN 2, explosive boiling may take place. In this paper, using the high-power short-duration pulsed laser heating method and the high-speed photography technology, the experimental result of explosive boiling in saturated LN 2 is illustrated; and the two exclusive characteristics of explosive boiling in LN 2: changeover time and the relative long-time adherence of the bubble cluster to the surface, are investigated.
When there is a transient high heat flux input to the LN 2, explosive boiling may take place. In this paper, using the high-power short-duration pulsed laser heating method and the high-speed photography technology, the experimental result of explosive boiling in saturated LN 2 is illustrated; and the two exclusive characteristics of explosive boiling in LN 2: changeover time and the relative long-time adherence of the bubble cluster to the surface, are investigated.