The behavior of rewetting on a high superheated and dry surface, focusing on rewetting temperature just as collapse of saturated and subcooled film boiling was investigated experimentally. Saturated and subcooled impingement jet experiments were conducted by using a silver plate with 40.0 mm × 40.0 mm (length × width) and the distilled water at atmospheric condition. The liquid subcooling was 0, 10, 20, 30, 40, 50, and 75K, respectively. Temperature of the test heater was measured by using a infrared thermometer from a back side of it. Although the liquid velocity and liquid subcooling change, the sputtering temperature, i.e., rewetting initiation temperature, was close to 200 °C predicted by Nishio’s correlation.

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