||In recognision of
| Claudia Adduce , Italy (2019)
|| for outstanding contributions in the field of experimental and numerical modeling and innovation in experimental techniques with applications to stratified flows and sediment transport.
|In recognition of outstanding contributions in the field of environmental hydroinformatics and ecohydraulics.
20th Ippen Lecture 2017
| D. Violeau
|for outstanding contributions in the field of fluid mechanics with special emphasis on turbulence modeling for addressing complex, real-life hydraulics problems.
19th Ippen Lecture 2015
| G. Constantinescu, USA (2013)
||for outstanding contributions in the field of fluid mechanics and especially of turbulence modeling with applications to fluvial hydraulics and stratified flows.
18th Ippen Lecture 2013
| X. Sánchez-Vila, Spain (2011)
|| for outstanding contributions in the field of groundwater flow and contaminant transport with application to flow modeling in heterogeneous porous media.
17th Ippen Lecture 2011
| Y. Niño, Chile (2009)
||for outstanding basic contributions in lfuid mechanics with applications to sediment transport and environmental flow porcesses.
16th Ippen Lecture 2009
| M.S.Ghidaoui, HK China (2007)
|| his outstanding contribution to research in environmental fluid mechanics.
15th Ippen Lecture 2007
| A. M. Da Silva, Canada (2005)
|| her outstanding contributions in the area of fluvial processes and in particular, sediment transport.
14th Ippen Lecture 2005
| H. Chanson, Australia (2003)
|| his numerous contributions to congresses and scientific journals, invited lectures short courses, and book authorship in the areas of hydraulic structure design, and transfer processes in turbulent flow, and for his active contribution to IAHR congresses, the River-list discussion group, and the Hydraulic Structures section.
13th Ippen Lecture 2003
| M.H. Garcia, USA (2001)
|| his creative and original research and publications on sediment transport, fluvial hydraulics and mudflow, for his application of hydraulic theory to engineering problems, for his mentoring and guiding of research students as an educator, and for his devoted services to the hydraulic profession.
| V. Babovic, Yugoslavia (1999)
|| his achievements in original research and development leading to the engineering applications and implementation of Hydroinformatics real-time control and decision support systems.
| W.H. Hager, Switzerland (1997)
|| his outstanding contribution to research work and application in river mechanics and morphology and sediment transport.
| G. Parker, USA (1995)
|| his contribution to research work in river mechanics and morphology, and sediment transport.
| Y.-K. Tung, USA (1993)
|| his outstanding contributions in the area of probabilistic analysis of water resources engineering problems, and research in hydraulics and hydrology including rainfall-runoff modelling and flood routing.
| R.A. Falconer, UK (1991)
|| his outstanding contributions in the area of computational flow modelling of coastal and estuarine waters and associated environmental problems.
| G.H. Jirka, Germany (1989)
|| his basic research contributions in stratified flows, air-water-sediment transfer processes, innovation in experimental techniques and for applied research contributions in waste heat disposal and the environmental impact of energy facilities.
| W. Rodi, Germany (1987)
|| his contribution to the mathematical modelling of turbulence phenomena in hydraulics.
| K.G. Ranga Raju, India (1985)
|| his many contributions to the understanding and formulation of river processes.
|F.M. Holly Jr., USA (1983)
||his contributions to the study of turbulent diffusion, sediment transport and river stability and the development of numerical simulation thereof.
|J.P. Benqué, France (1981)
|| his contributions to fluid mechanics in particular to the development of numerical simulation of complex natural and industrial flows.
| F. Durst, Germany (1979)
|| his contributions to research in fluid mechanics, in particular to the development of measuring techniques for experimental studies of complex flow fields.