Hof Group

Nonlinear Dynamics and Turbulence

Most fluid flows of practical interest are turbulent, yet our understanding of this phenomenon is very limited. The Hof group seeks to gain insight into the nature of turbulence and the dynamics of complex fluids.

Flows in oceans, around vehicles, and through pipelines are all highly turbulent. Turbulence governs friction losses and transport and mixing properties. Despite its ubiquity, insights into the nature of turbulence are very limited. To obtain a fundamental understanding of the origin and the principles underlying this phenomenon, the Hof group investigates turbulence when it first arises from smooth, laminar flow. The group combines detailed laboratory experiments with highly resolved computer simulations, and applies methods from nonlinear dynamics and statistical physics, enabling them to decipher key aspects of the transition from smooth to turbulent flow, and identify universal features shared with disordered systems in other areas of physics. Some of these insights can be used to control turbulent flow, and the group actively develops such methods. In addition, the group investigates instabilities in fluids with more complex properties, such as dense suspensions of particles, polymer solutions and blood flow.


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Team

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Nishchal Agrawal

Postdoc

+43 2243 9000 7624

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Mike Hennessey-Wesen

PhD Student

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Shoaib Kamil

PhD Student


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Elena Marensi

Postdoc

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Michael Riedl

PhD Student

+43 2243 9000 2122

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Sarath Suresh

PhD Student


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Atul Varshney

Postdoc

+43 2243 9000 2083

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Mukund Vasudevan

Laboratory Technician

+43 2243 9000 7624

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Gökhan Yalniz

PhD Student


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Yi Zhuang

Postdoc

+43 2243 9000 7632


Current Projects

Revisiting the turbulence problem using statistical mechanics | Transition from laminar to turbulent flow | Dynamics of complex fluids | Control of fully turbulent flows | Cytoplasmic streaming | Instabilities in cardiovascular flows


Publications

Agrawal N. 2021. Transition to turbulence and drag reduction in particle-laden pipe flows. IST Austria. View

Marensi E, He S, Willis AP. 2021. Suppression of turbulence and travelling waves in a vertical heated pipe. Journal of Fluid Mechanics. 919, A17. View

Yalniz G, Hof B, Budanur NB. 2021. Coarse graining the state space of a turbulent flow using periodic orbits. Physical Review Letters. 126(24), 244502. View

Scarselli D, Budanur NB, Timme M, Hof B. 2021. Discontinuous epidemic transition due to limited testing. Nature Communications. 12(1), 2586. View

Liu T, Semin B, Klotz L, Godoy-Diana R, Wesfreid JE, Mullin T. 2021. Decay of streaks and rolls in plane Couette-Poiseuille flow. Journal of Fluid Mechanics. 915, A65. View

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Career

since 2013 Professor, IST Austria
2007 – 2013 Research Group Leader, Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
2005 – 2007 Lecturer, University of Manchester, UK
2003 – 2005 Research Associate, Delft University of Technology, The Netherlands
2001 PhD, University of Manchester, UK


Selected Distinctions

2019 Simons Foundation Grant
2017 Fellow, American Physical Society (APS)
2012 ERC Consolidator Grant
2011 Dr. Meyer Struckmann Science Prize
2005 RCUK Fellowship


Additional Information

ERC Starting/Consolidator Grant website



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