Frazil ice - Wikipedia
Frazil ice is a collection of loose, randomly oriented ice crystals a millimeter and sub-millimeter in size, with various shapes, e.g., elliptical disks, dendrites, needles and of an irregular nature.
Understanding frazil ice: The contribution of laboratory studies
2021年9月1日 · Frazil accretion (by attachment) and in situ growth are two mechanisms reported to contribute to anchor ice development, and also to ice formation on submerged structures, such as trash racks. These processes, and the way frazil and anchor ice are related, have yet to be clarified – Kempema and Ettema (2015) provide an enlightening discussion ...
Dominant frazil ice production in the Cape Darnley polynya …
2022年10月19日 · Using moored acoustic measurements and a satellite microwave algorithm, we reveal that underwater frazil ice dominates in the polynya. This underwater ice formation prevents heat-insulating surface-cover ice forming, thereby enabling efficient ice production.
Understanding frazil ice: The contribution of laboratory studies
2021年9月1日 · What do frazil ice crystals look like? What form does this ice take? So as to simply visualize that material in a controlled (laboratory) environment, investigators needed to first replicate the conditions required for the generation of frazil ice, then to devise means to capture images of individual particles. Several early studies were able ...
Frazil Ice Formation: A Review | Journal of the Hydraulics Division ...
2021年2月3日 · Future research should focus on obtaining heat transfer data, temperature measurements, flow measurements, physical measurements on frazil ice crystals (particularly frazil ice concentration), frazil ice nucleation processes, evolution of frazil ice crystals, anchor ice formation, forecasting the occurence of frazil ice, entrainment of frazil ...
Frazil ice | ice formation | Britannica - Encyclopedia Britannica
Frazil appears in several types of initial ice formation: thin, sheetlike formations… …a soupy suspension known as frazil or grease ice. Under calm conditions the crystals freeze together to form a continuous sheet of new ice called nilas. It is up to …
TC - Frazil-ice growth rate and dynamics in mixed layers and sub-ice ...
2018年12月25日 · Frazil-ice formation is an extremely rapid mode of ice growth occurring as the initial phase of ice growth in turbulent waters. Frazil ice forms as a suspension of crystals in oceans, lakes, rivers, and sub-glacial ice streams from liquid water supercooled beneath its freezing temperature ( Martin and Kauffman , 1981 ; Lawson et al. , 1998 ) .
Frazil Ice - ScienceDirect
1983年1月1日 · Frazil ice in rivers constitutes a two-phase flow of solid particles in the liquid phase of the same material. The initial behavior is dominated by nucleation characteristics and thermal flows between the ice particles and the liquid …
Frazil ice formation in an ice shelf water plume - Smedsrud
2004年3月17日 · We present a model for the growth of frazil ice crystals and their accumulation as marine ice at the base of Antarctic ice shelves. The model describes the flow of buoyant water upward along the ic...
Frazil Ice Formation: A Review - Semantic Scholar
Frazil ice comprises millimeter-sized ice crystal particles or flocculations in water, and its generation and evolution primarily occur during the initial stage of the river ice process. Meanwhile,… The supercooling of river water leads to active frazil ice production.