Numerical simulation of free surface flows at fish passages

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2014

Öğrenci: KEREM ÖZKAYA

Danışman: METE KÖKEN

Özet:

Hydroelectric dams build on the rivers block most of the flow section and leaves no space for the migrating fish along the rivers. Fish passages are built along the river at those locations to overcome this problem. Understanding the hydrodynamics inside these structures is essential in the design process. Parameters like discharge, velocity, acceleration and turbulence inside the fish passage can be obtained using three dimensional numerical simulations. Change in these parameters is investigated for different fish passage designs within this study. Overall, computational fluid dynamics (CFD) appears to be an effective tool for analyzing free surface flows over technical fish passes for studying of different design scenarios.