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Ship model cross section flow field or bubble field testing method

A cross-section and air bubble technology, which is applied to ship parts, ship construction, ship design, etc., can solve the problem of not being able to photograph the transverse flow field or bubble field of the ship model, and achieve the effect of simple structure and reasonable layout

Active Publication Date: 2020-12-29
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The flow field measurement equipment currently used in the market can capture the longitudinal flow field of the ship model, but cannot capture the transverse flow field or bubble field of the ship model

Method used

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  • Ship model cross section flow field or bubble field testing method
  • Ship model cross section flow field or bubble field testing method

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Experimental program
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Effect test

Embodiment 1

[0023] Such as figure 1 As shown in , a black and white square grid is drawn on one side of the target plate, and the size of the target plate is determined according to the cross-sectional size of the ship model.

[0024] Such as figure 2 As shown, the target plate is placed in the circulating water tank 2 perpendicular to the water surface, and its plane is plane 3; then the high-speed camera 5 is placed, and its shooting angle and elevation angle are adjusted so that the target plate is completely displayed in the photo; after the high-speed camera 5 is fixed Place the constant-bright laser sheet light source 1, adjust its spatial position and focus position, so that the sheet light source 1 coincides with the plane 3, and remove the target plate in the water tank after the sheet light source 1 is fixed; Paint the outer surface of the hull with black matte paint within the range to avoid reflections when the laser irradiates the hull and affect the shooting results; after...

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Abstract

The invention belongs to the technical field of ship and ocean engineering, and particularly relates to a ship model cross section flow field or bubble field testing method. According to the method, measurement of spatial and temporal distribution of ship bubbles is achieved, and the method can be used for researching the distribution rule of the bubbles generated by a ship along the ship bottom.The method has the advantages of being simple in structure and reasonable in arrangement, the distribution condition of the bubbles on the cross section can be converted into a mathematical model capable of being analyzed, and an effective technical scheme is provided for researching the distribution rule of the bubbles along the ship bottom.

Description

technical field [0001] The invention belongs to the technical field of ships and ocean engineering, and in particular relates to a test method for a cross-sectional flow field or bubble field of a ship model. Background technique [0002] The flow field measurement equipment currently used in the market can capture the longitudinal flow field of the ship model, but cannot capture the transverse flow field or bubble field of the ship model. However, information on the transverse flow field and bubble field in the cross-section of the ship model is extremely important for the line design of the ship model, so there is an urgent need for a device that can photograph the transverse flow field of the ship model. Contents of the invention [0003] The purpose of the present invention is to provide a test method for the cross-sectional flow field or air bubble field of a ship model that can realize the measurement of the space-time distribution of the hull air bubbles, and then s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B71/10
CPCB63B71/10
Inventor 姚熊亮马贵辉黄祥宏栾景雷戴捷王志凯秦再白孙龙泉陈锦李文朋
Owner HARBIN ENG UNIV
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