Prof. Dr. Willi H. Hager

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Prof. Dr. Willi H. Hager

ETH Zurich

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About

Born in 1951, Hager obtained his engineering degree from the ETH Zurich in 1976, were in 1981 he also obtained his PhD at its VAW Laboratory of Hydraulics, Hydrology and Glaciology. Hager had started his career in industry in engineering. In 1981 he joined the Swiss Federal Institute of Lausanne (EPFL), where he was appointed scientific collaborator of Chair of Hydraulic Constructions. In 1989 he returned to the ETH Zurich, where he was appointed Professor and chaired the scientific staff of the VAW Laboratory of Hydraulics, Hydrology and Glaciology. Among others in 1988 Hager received the J.C. Stevens Award by the American Society of Civil Engineers, and in 1997 he received the Ippen Award by the International Association for Hydraulic Research (IAHR).

Career Type:

Scientist/Researcher/Academic

Organization Type:

Universities and Academia

Expertise Fields/Interests:

Major Achievements:

Technical Committees

Committee Name
Committee on Experimental Methods and Instrumentation
IAHR/IWA Joint Committee on Urban Drainage

My Papers and Presentations

Title	Year
Henry Bazin and His Weir Flow Research	2023
Correspondence Between de Saint-Venant and Boussinesq	2022
Famous women in hydraulics: Margaret Sara Petersen	2022
Famous women in hydraulics: Olga Ladyzhenskaya	2022
Apparent cohesion effects on overtopping-induced fluvial dike breaching	2021
Irmgard Flugge-Lotz: Famous women in fluid mechanics	2021
Fluvial Dike Breaching Induced by Overtopping: Lessons from Experimental and Numerical Studies	2019
On the Undular Hydraulic Jump and the Undular Surge	2019
An experimental investigation on louvres and angled bar racks	2018
Bed-Load Transport: From the Beginning into the Future	2018
Depth-averaged modelling of granular dike overtopping	2018
Tsunamis generated by fast granular landslides: 3D experiments and empirical predictors By Francesco Bregoli, Allen Bateman and Vicente Medina	2018
Numerical embankment breach modelling including seepage flow effects	2017
Ogee Weir Crest Definition: Historical Advance	2017
Solitary wave overtopping at granular dams	2017
Solitary wave run-up: wave breaking and bore propagation	2017
Alexandre Preissmann: his scheme and his career	2015
Analytical and Numerical Boundary Layer Solutions at Weir Crest Control Section	2015
Depth-averaged model for undular hydraulic jump	2015
Impulse Wave Modelling and Corresponding Underwater Landslide Deposition	2015
Labyrinth Weirs: Developments Until 1985	2015
Spatial Dike Breach: Sediment Surface Topography Using Photogrammetry	2015
Spillway Jet: Historical Advance from Weir Toward Standard Spillway	2015
Videometric Water Surface Tracking: Towards Investigating Spatial Impulse Waves	2015
Hydraulic structures: a positive outlook into the future	2014
Overtopping dike-breach: effect of grain size distribution	2014
Trajectories and air flow features of ski jump-generated jets	2014
Aerated flow characteristics of skimming flow over stepped chutes	2013
Solitary Impulse Wave Run-Up Characteristics	2013
Stepped Spillways: Technical Advance from 1900	2013
Historical Development of Side-Channel Spillway in Hydraulic Engineering	2011
1D numerical evaluation of dike erosion due to overtopping	2010
Choking Features of Drop Manholes in Sewer Systems	2010
Air Concentration Characteristics of Drop-and Deflector-Generated Jets	2009
Dike Breaching Due to Overtopping	2009
Energy Loss in Circular Drop Manholes	2009
Historical Advance of Chute Aerators	2009
Hydraulics of Alluvial Dunes-Preliminary Results	2009
Johann Nikuradse – Hydraulic experimenter	2008
Air Transport Downstream of Chute Aerators	2007
Circular Drop Manholes Preliminary Experimental Results	2007
Flow Features in Plunge Pools	2007
Hydraulics of Ski Jumps	2007
Scour Processes at Spurs: Phenomenology and Countermeasures	2007
Step Aerator and Spray Reduction for Stepped Chutes	2007
Additional Results on Scour at Bridge Piers	2005
Circular Bridge Piers and Riprap Design	2005
Effect of Flood Waves on Bridge Pier Scour	2005
Historical Development of Pier Scour Hydraulics	2005
Spatial and Temporal Scour Features of Circular Bridge Piers	2005
Spurs in River Engineering-a Preliminary Study	2005
Henry Darcy's 200～（Th） Birthday	2003
Hydraulic Design of Bottom Rack Intakes	2003
Local Scour at a Partly-Full Flow Culvert Outlet	2003
Clear-Water Pier and Abutment Scour	2001
Hydraulic Features of Supercritical Bend Flow	2001
Simplified Shields Condition for Sediment Transport Inception	2001
Supercritical Junction Flow in Sewer Manholes	2001
Bend Flow in Bottom Outlets	1999
Positive Front of Dambreak Wave on Rough Bottom	1999
Sideweir for Combined Sewers	1999
Building Scour in Floodplains	1997
Positive Front of Dambreak Wave	1997
Ritter's Dambreak Wave Revisited	1997
Expandin G USBR Stilling Basin Ⅲ	1995
Supercritical Flow in Horizontal Bend	1995

My Videos

Title	Year
Willi H. Hager - Interview 2013	2020

IAHR Awards

IAHR Awards	Date