Artificial fish reef with good flow field effect

Abstract

The invention discloses an artificial fish reef with the good flow field effect. The artificial fish reef is characterized in that the artificial fish reef with the good flow field effect is formed by cutting a regular hexagonal prism through a slope (1), the diameter of the circumcircle of the cross section of the regular hexagonal prism is equal to the height of the regular hexagonal prism, the bottom side of the slope (1) is arranged on the bottom face of the regular hexagonal prism, the slope coincides with the connecting line of two top points, at a distance of one top point, of the bottom face of the regular hexagonal prism, the included angle formed between the slope (1) and the bottom face is 60 degrees, a through hole (2) is formed in the slope (1), the axis of the through hole is perpendicular to the slope (1), the cross section of the through hole is rectangular, the through hole penetrates through the regular hexagonal prism, and the aperture efficiency of the through hole (2) is 0.2.

Description

technical field [0001] The invention relates to an artificial fish reef, in particular to an artificial fish reef with good flow field effect which can increase the complexity of the flow field around it to achieve better fish collection effect. Background technique [0002] Artificial fish reefs are structures artificially set up in the sea. The purpose is to improve the ecological environment of the sea area, create a good environment for marine organisms to inhabit, and provide places for fish to reproduce, grow, feed and shelter enemies, so as to achieve protection, multiplication and The purpose of increasing catches. Traditional artificial reefs are generally in the shape of a cube with a simple structure. The angles of the sides of this artificial reef and the angle of the upstream surface are both 90 degrees, which is not conducive to increasing the complexity of the surrounding flow field. At the same time, openings are generally set on traditional artificial reefs...

AI Technical Summary

Problems solved by technology

Traditional artificial reefs are generally in the shape of a cube with a simple structure. The angle of the side and the angle of the upstream surface of this artificial reef are both 90 degrees, which is not conducive to increasing the complexity of the surrounding flow field.

At the same time, openings are generally set on traditional artificial reefs to achieve a better fish collection effect, but the size of the openings will affect the changes in the backflow area of ​​the flow field behind the reef, and the standard for measuring whether the openings are appropriate is the opening ratio. The artificial reef does not pay much attention to the index of opening ratio. The opening ratio is relatively random, which directly affects the fish collection effect of the artificial reef.

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