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Inaugural lecture by Professor Jens Honore Walther

Af Michael Bo Hansen, 30. januar 2014, Nyt

DANSIS is proud to inform about the multiple DANSIS Presenter and new professor at the Technical University of Denmark(DTU), Jens Honore Walther, is presenting his inaugural professorial lecture Friday 7th February from 15.00 - 16.00 followed by a reception from 16.00 - 18.00 at DTU.

Professor Jens H. Walther has until now had two positions: Beside the position at the Technical University of Denmark - Department of Mechanical Engineering he is also Chair of Computational Science, ETH Zürich in Switzerland. Jens H. Walther has presented several times in association with DANSIS, including "Parallel Scaling of the Discrete Element Method" in 2009 and "Discrete Vortex Simulation" in 2004.

The inaugural lecture will be held: 
Multiscale Fluid Mechanics - From Molecules to Vortices
Friday 7th February from 15.00 - 16.00
Building 101 A,
Conference room 1, first floor
Technical University of Denmark (DTU)
Anker Engelunds Vej 1, 2800 Kgs. Lyngby
After the lecture a reception will take place in the foyer, outside the conference room on the first floor of building 101A.

The title of the lecture is Multiscale Fluid Mechanics - From Molecules to Vortices
Fluid mechanics lies at the heart of many processes in science and engineering. It encompasses studies of fluid transport in living cells, blood flow in arteries, the flight and swimming of living organisms, and geophysical flow. It includes nanofluidic studies of lab-on-a-chip devices, turbulent flow in pipes and turbomachinery, flow in engines, aircraft flight, ship propulsion, and the aerodynamic design of buildings.
Our research is devoted to studies of fluids under nanoscale confinement, and the development of efficient multiscale algorithms for accurate simulation of these systems. The lecture will outline key elements of the methods and present results from multiscale, atomistic simulations of nanoscale heat and mass transfer.
The governing equations in fluid mechanics, from Newton’s equation of motion describing the trajectories of atoms at the nanoscale to the Navier-Stokes equations in continuum fluid mechanics are most naturally derived in a Lagrangian frame of references. We retain the Lagrangian formulation in our research through the use of particle methods, such as dissipative particle dynamics, smoothed particle hydrodynamics, and vortex methods. Our current effort is focused the development of high order particle methods with application to bluff body aerodynamics and fundamental studies of vortical flows.
Industrial applications provide us with a continuous source of inspiration for the development of new research areas. These include numerical and experimental studies of the scavenging flow in large two-stroke marine diesel engines, cavitation in fuel and gear pumps, sail shape optimization, vortex induced vibration in bluff body flow, cooling of fish, and measurements of the exhalent jet from mussels. The lecture will present recent result obtained for the heat, mass, and momentum transfer in marine diesel engines.
18. okt. 2017, Graduate Prize

Winner of graduate award 2017

3. okt. 2016, Graduate Prize

Winner of Dansis Graduate Award 2016

11. nov. 2015, Graduate Prize

Winner of Dansis Graduate Award 2015

DANSIS - The Danish Society for Industrial Fluid Dynamics     Email: dansis@dansis.dk