Abstract
Sea spray icing poses a hazard for marine vessels in cold climates. This experimental study considers fresh and saltwater droplets in the inviscid, impact-driven regime solidifying on a variety of marine surfaces, coated and uncoated, under arctic conditions. A first order thermal resistance model is developed which includes the resistance within the post-impact drop and the transient spreading resistance within the substrates and coatings. An expression for dimensionless time-to-freeze based on thermal resistance is developed which shows good agreement across a wide range of dimensionless time. Notably, when the coating is a poor thermal conductor as is typical of marine coatings, the transient spreading resistance within the surface and coating significantly influences the post-impact spread radius and time-to-freeze. This study provides expressions to quantify the effects of substrate and coating thermophysical properties on the solidification process.
Accepted Version (
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Published Version
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