Ole Hassager

Ole Hassager

Technical University of Denmark

1947 – Present

Chemical Engineer
Fellow, Elected 2016
Awarded Bingham Medal 2020

Ole Hassager is currently the Director of the Danish Polymer Center and Professor of the Danmark Tekniske Universitet (DTU). Professor Hassager received a M.Sc. in 1970 from the Technical University of Denmark and a Ph.D. in 1973 from the University of Wisconsin-Madison. Previously at the Danmark Tekniske Universitet he has held the positions of Research Fellow of Chemical Engineering and Associate Professor. At the University of Wisconsin-Madison he has held the positions of Research Fellow of Chemical Engineering and Visiting Professor of Chemical Engineering.

Professor Hassager researches the rheology and structure of complex fluids and the connections between molecular architecture and macroscopic properties, extensional rheology, and computational fluid mechanics with free interfaces. Specifically, this research has included investigations of the negative wakes behind bubbles in non-Newtonian liquids, squeezing flow with partial wall slip, corotational viscoelastic constitutive models, instability of extending polymer filaments, viscoelastic flow in eccentric annuli, and sedimentation of spheres in polymeric fluids. Recently, he has concentrated his efforts on both steady-state and time-dependent aspects of extensional flows in polymer melts. He co-developed, and recently patented, a Filament Stretching Rheometer, allowing measurement of the extensional rheology of molten polymer systems. He has co-authored two books: Dynamics of Polymeric Liquids, Volume I: Fluid Mechanics and Dynamics of Polymeric Liquids, Volume II: Kinetic Theory. He has received many awards for his work, including the Weissenberg Award of the European Society of Rheology, the Rheology Award of the Nordic Rheology Society, the Stichting Fund Research Award, the STATOIL Award for Technical Research, the Gorm-Petersens Memorial Award for Technical Research, the Carl Klason Rheology Award of the Nordic Rheology Society, and the BSL Lectureship Award at the University of Wisconsin. Professor Hassager has served on executive boards of a number of scientific communities including The Society of Rheology, where he served on the executive committee from 2004 to 2010, the Danish Council for Independent Research – Technology and Production Sciences from 2007 to 2012, and the DTU Academic Council from 2000 to present. Additionally, he is a member of the editorial boards of Rheologica Acta and the Journal of Non-Newtonian Fluid Mechanics.

Based on the documents submitted by R. Byron Bird.

Addendum: In 2020 Professor Hassager was awarded the Bingham Medal of The Society of Rheology.