Author(s): Anders Omstedt
Linked Author(s): Anders Omstedt
Keywords: No Keywords
Abstract: A new mathematical model describing cooling and initial ice formation is summarized. The model solves some of the problems associated with the so called degree-day method, by the inclusion of a turbulent boundary layer and frazil ice dynamics. The formulation is based on the conservation equations for mean momentum, heat energy, salinity, frazil ice concentration and grease ice (frazil flock) concentration. The turbulent exchange coefficients are calculated using a two-equation model of turbulence. Applications of the model to some laboratory experiments, together with calculations illustrating initial ice formation in rivers and oceans, are further discussed in the present paper. The applications give confidence in the approach adopted, and the model can therefore serve as a good guide for further studies.
Year: 1986