Title

Numerical Analysis for Aid to Understand the Flow Structure of Stream-Type Fishways

Authors

T Tsujimoto

Publication Date

1995

Publication Title

Proceedings of the International Symposium on Fishways '95

Start Page

49

End Page

56

Publication Place

Gifu, Japan

Publisher

The Organizing Committee for International Symposium on Fishways '95 in Gifu

Abstract

In this study, numerical analysis based on k-e turbulence model is applied to flows in stream-type fishways: Denil-type, superactive-type bottom baffles, and Alaska steeppass. In these fishways, the hydraulic resistance and cellular motions are controlled by obliquely arranged fins (or baffles), and the effect of fins are represented by adding the terms of the drag and the production of turbulent energy corresponding to the work done by the drag to the governing equation of flow to know the longitudinally averaged turbulent flow characteristics. The present model can describe the outline of the flow behavior in various fishways of stream-type.

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