Author(s): W. Paul Zakrzewski

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Abstract: Collision-generated spray flux to a vertical plate (e. g., the windward and front sides of the ship's superstructure and bulwarks) located on a medium-sized fishing vessel is investigated for a fully arisen sea. Based on the published data sets, the vertical distribution of the liquid water content in the spray cloud and the time of spray cloud residence over a ship moving into the waves have been determined. The ratio of the residence time of the moving film on the ship's superstructure to the time interval between two subsequent splashings has been calculated for the front side of the ship's superstructure. This ratio has been calculated for the front side of the ship's superstructure. This ratio has been used to find the scaling factor which enables correction of the time-integrated local ice growth rate. It has been found that such a correction of the time-integrated local ice growth rate on the upper parts of elevated objects located on a medium-sized fishing vessel is required since the scaling factor sometimes reduces the icing rates by half. The proposed method may be applied to correct the time-integrated local ice growth rates on other types of ships and to produce an improvement in the calculated and/or predicted instantaneous icing rates and ice loads due to icing if some field experiments were conducted.

DOI:

Year: 1986