ICE COVER SIMULATION METHOD Russian patent published in 2020 - IPC G01M10/00 

FIELD: ice technology.

SUBSTANCE: invention relates to ice-breaking, particularly, to simulation of ice cover in test basin. Simulation is carried out at room temperature (about 20–22 °C) using material as a model material lighter than water, for example hydrogenated fat, which is preheated to temperature above its melting point (about 45–46 °C) and mixed with kerosene in the required proportion. Suspended bottom with vertical walls installed along its perimeter is used for its distribution with equal layer of required thickness on pool water surface. A water-soluble film is placed on the surface of the bottom and walls and the surfaces themselves are made water-permeable. After the suspended bottom is lifted above the water level in the pool, molten hydrogenated fat is poured into the bowl formed by the bottom and walls to the level corresponding to the specified thickness of the simulated ice cover. After hardening of model material, which has become model layer, due to its cooling to room temperature, suspended bottom is lowered to depth, providing zero buoyancy to model layer. To reduce friction forces of the layer when it is separated from the side walls, the latter are inclined to the horizontal plane. After dissolving of water-soluble film, due to water permeability of bottom and walls surfaces, model layer separates from surfaces of bowl, in which it was poured. As a result, after lowering suspended bottom, due to lower density of hydrogenated fat than water, model layer with positive buoyancy will remain floating on water surface.

EFFECT: method will make it possible to reduce expenses for performance of model experiments and to increase their efficiency.

1 cl, 3 dwg