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IMPACT OF COLLISION MODELS ON PARTICLE TRANSPORT IN OPEN CHANNEL FLOW

Bernhard Vowinckel
Institute of Fluid Mechanics TU Dresden D-01062 Dresden, Germany

Tobias Kempe
Technische Universitat Dresden, Institute of Fluidmechanics, Mommsenstr. 13 01069, Dresden, Germany

Jochen Frohlich
Institute for Technical Chemistry und Polymer Chemistry University of Karlsruhe; Institute of Fluid Mechanics, Dresden University of Technology, George-Bähr-Str. 3c, D-01062, Germany

Аннотация

Simulation of sediment transport in turbulent channel flows is of vital interest in various applications such as environmental or biomedical flows. While the interaction of the fluid and the particle can be tackled numerically using a phase-resolved immersed boundary method (IBM), the particle-particle interaction has to be modeled using an appropriate collision model. This paper presents a sensitivity analysis for the particle-laden flow in a turbulent channel with respect to the type of collision model employed.