EXPERIMENTAL SETUP FOR MODEL RESEARCH OF PROPELLER SCREW coaxially in ice

摘要

The invention relates to the field of shipbuilding and the question of organizing and conducting model tests complexes consisting of coaxial propellers in ice conditions, and solves the problem of creating a device for modeling studies of coaxial propellers in ice.; For this purpose, the experimental apparatus for simulation studies propellers coaxial propellers in ice, comprising two coaxially mounted on a water pipe with a drive counter-rotating propellers, one of which is located in the aft end of the ship model attached to a tow truck towing tank, and the other is placed behind the first propeller screw installed facing upstream and situated on the testing machine screw propellers in free water, also attached to the towing trolley on the floor eznoy model before propellers, upstream, is attached to the towing trolley body in the form of a parallelepiped with a wall-sided along the length sides and a sloped front base for breakout ice field to form fragments of ice, having a tilt angle to the waterline within 20 ⁰ ÷ 30 ⁰ .; The experimental apparatus for simulation studies coaxial propeller screws in the ice allows experimental studies of coaxial screw propeller in ice towing tanks, which distinguishes it from the prototype.