A convenient and accurate method has been developed to infer apparent rewetting and rewetting temperatures associated with quench front propagation in transient boiling processes. Results obtained from quenching experiments based on jet impingement cooling of a preheated test specimen indicate that the rewetting temperatures depend on the initial specimen temperature, as well as on the flow and surface conditions. Measurements also reveal strong effects of the initial test specimen temperature and the flow velocity and subcooling on the quench front velocity.
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