HYDRAULIC STRUCTURE FOR WATER FLOW CONTROL

摘要

A hydraulic structure having walls (1) creating a downstream narrowing passage in a streaming surface water. The downstream ends (4) of the walls (1) are edged in order to generate vortices (2) dissolving from the edges (4) downstream which dissipate the energy of the flow created by a level difference between the entry and the exit of the passage.

主权项

1. Hydraulic structure for water flow control in a running surface water, wherein two wall members constitute a water passage effectively narrowing downstream, the ground of the bed of the surface water decreases downstream in the passage, and the downstream end of at least one of the wall members constitutes an edge after which the width of the bed is effectively widened so that the energy of flow of the height difference of the ground between the ground upstream and downstream is dissipated by essentially vertical vortices created at or near the edges.