Dr. Ing. Ismail Albayrak

Laboratory of Hydraulics,Hydrology and Glaciology (VAW-ETH)

Senior Scientist and Lecturer

My Profile

About

Dr. Ismail Albayrak is a Senior Scientist and Lecturer at the Laborator y of Hydraulics, Hydrology and Glaciology (VAW) of ETH Zurich since 2011. He received his MSc. in hydraulic engineering from Istanbul Technical University in 2003 and his PhD in the field of environmental hydraulics at the Federal Institute of Technology in Lausanne (EPFL) in 2008.

Career Type:

Scientist/Researcher/Academic

Organization Type:

Universities and Academia

Expertise Fields/Interests:

My principal research interests lie in the fields of Hydraulic Engineering and Research, Eco-hydraulics, Etho-hydraulics, Fluid Mechanics, Environmental Fluid Mechanics, River and lake Limnology, and Biomechanics with particular focus on: • Upstream and Downstream Fish Migrations • Hydro-abrasion on hydraulic structures, bypass tunnels and turbines • Sediment transport i.e. bed-load, suspended load in super-critical open-channel flow • Reservoir sedimentation • Fluid Mechanics, Environmental Fluid Mechanics, River and lake Limnology • Large and small scale turbulence structures in open-channel flow • Hydraulic instrumentation and measurement techniques (ADV, ADVP, ADCP, Large & small scale PIV, stereoscopic and panoramic PIV, High-speed imaging, PTV, Drag Force Measurement Techniques, Geophones)

Major Achievements:

Technical Committees

Committee Name
Committee on Hydraulic Structures
Committee on Ecohydraulics
Committee on Experimental Methods and Instrumentation
Committee on Fluvial Hydraulics
Committee on Hydraulic Machinery and Systems
Working Group on Drones in Hydraulics

IAHR Position

Committee Name	Position	Start Date	End Date
Committee on Hydraulic Structures	Co-opted	2023-09-09	Now
Working Group on Reservoir Sedimentation	Member	2019-08-27	Now

My Papers and Presentations

Title	Year
f-Curved-Bar Rack – Bypass System: development planning construction and first operational experiences at hydropower plant Herrentöbeli	2024
Fish downstream passage over weirs at low-head hydropower plants: Field study of total dissolved gas concentrations	2024
Preface	2024
Quantifying hydraulic conditions and passage efficiency for an upstream fish passage: a case study from Schiffmühle	2024
Comparison of Four-Transducer UVP Configuration and ADV for Flow Velocity and Turbulence Measurements	2023
Passage of Downstream Moving Fish at a Bypass Gate with Bottom Opening	2023
Retrofitting Trash Racks with Electricity to Protect Downstream Moving Fish	2023
Analysis and Optimisation of Flow Around Fish Guidance Structures Using CFD	2022
Comparison of Physical and Numerical Model of Spillway and Pressurized Sediment Channel of a Dam	2022
Development of Low-Voltage Electrified Fish Guidance Racks for Safe Downstream Fish Migration	2022
Effect of Bypass Layout on Guidance of Downstream Moving Fish at Bar Rack Bypass Systems	2022
Fish Swimming Behavior and Bypass Acceptance at Curved-Bar Rack Bypass Systems	2022
An experimental investigation on fish guidance structures with horizontal bars	2020
Fish guidance structures: hydraulic performance and fish guidance efficiencies	2020
Hydraulic performance of fish guidance structures with curved bars – Part 1: head loss assessment	2020
Hydraulic performance of fish guidance structures with curved bars – Part 2: flow fields	2020
Bed-Load Diversion with a Vortex Tube System	2019
An experimental investigation on louvres and angled bar racks	2018
Bedload Transport and Hydro-Abrasive Erosion at Steep Bedrock Rivers and Hydraulic Structures	2018
Horizontal BAR Rack Bypass Systems for Fish Downstream Migration: State of Knowledge, Limitations, and Gaps	2018
Improved Hydraulic Performance of Fish Guidance Structures with Innovative BAR Design	2018
Research Overview on Multi-Species Downstream Migration Measures at the Fithydro Test Case Hpp Bannwil	2018
Various Sediment Measurement Methods and Techniques as Basis for Habitat Quality Evaluation in the River Section of Hpp Schiffm"Uhle	2018
Field Calibration of Bedload Monitoring System in a Sediment Bypass Tunnel: Swiss Plate Geophone	2017
Fish Guidance Structures: New Head Loss Formula and Fish Guidance Efficiencies	2017
Flow Fields Around Fish Guidance Structures	2015
Flow-Plant Interactions at a Patch Scale: A Field Study Using a Stereoscopic PIV System	2013
Biomechanical Properties of Aquatic Plants: Implications for Hydraulic Engineering and Aquatic Ecology	2010
Effects of Plant Leaf Shape on Drag Forces Imposed by Water Flow	2010
Dynamics of Secondary Currents and Surface Boils in Turbulent Open-Channel Flow Revealed by Surface Particle Image Velocity Measurements	2007
Secondary Currents and Coherent Structures, Their Distribution Across a Cross Section and Their Relation to Surface Boils in Turbulent Gravel-Bed Open-Channel Flow	2007

My Videos

Title	Year
Ismail Albayrak - Swiss Sediment Bypass Tunnels	2021

IAHR Awards

IAHR Awards	Date