Abstract
The present experimental study analyzes the rewetting behavior of a hot vertical stainless-steel foil by a circular impinging liquid jet. The transient temperature of the hot foil, recorded by an infrared camera, is used to evaluate the rewetting velocity and heat flux distribution. The rewetting velocity varies within 2.0–20.0 cm/sec. Maximum surface heat flux is highest at the stagnation point and reduces in the downstream direction. A correlation for the rewetting velocity is developed that predicts 85% of test data within an error band of ± 30%. Present results agree well with the available theoretical models and test data.
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