seminar on Fluid MEchanics

[ARMENIO at dica.units.it]

Seminar on Fluid Mechanics

The turbulent oscillating channel flow subjected to a wind stress

Dr. Werner Kramer

Fluid Dynamics Laboratory, 
Department of Applied Physics
Eindhoven University of Technology

Oscillating flows are of importance to many industrial and geophysical applications. For instance, the tides drive an inflow (high tide) and outflow (low tide) in estuary regions. Strong wind conditions are also  typical for these regions. We aim to study by Large Eddy Simulations the simplified problem of an oscillating channel flow subjected to a wind stress at the free surface. Depending of the phase of the tide strong shear layers develop at the bottom and free surface. In these layers turbulence is hence strongly enhanced. Subsequently, the turbulence fills the entire vertical fluid column. In this studies we investigate the turbulent properties of the flow and pay attention the boundary layers and turbulent structure in this region. This research is part of a Research Project jointly carried out by the group of Prof. H.J.H. Clercx (Dept. Applied Physics, TUE) and the group of Prof. V. Armenio, (Dept. Civil and Environmental Engineering, UT) aimed at the study of dispersion of microorganisms in water basins.


Vincenzo Armenio, Ph.D
Associate Professor of Environmental Hydraulics
http://www.dica.units.it/perspage/armenio/IEfluids.html#fluids
Director of the School of Doctorate in 
Environmental and Industrial Fluid Mechanics
http://poseidon.ogs.trieste.it/phd/fluid/
Dipartimento di Ingegneria Civile ed Ambientale, 
Università di Trieste,
Piazzale Europa 1,
34127 Trieste, Italy
tel +39-040-558 3472
fax +39-040-572082
mobile +39-334-6798544