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Riblets
My first (experimental) project focused on this technique for turbulent
drag reduction.
Oscillanting wall
Turbulent friction is known to decrease if the wall is made to
oscillate spanwise!
DNS and parallel computing
Development of a general and efficient, parallel computer code for the
DNS of wall turbulence
Dilbert
A bunch of PC for parallel computing, designed and built specifically
for the DNS of turbulence (and for the code mentioned before)
Parallel computing (HTC)
First experiments with parallel computing
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Linear response of a
turbulent channel flow
What, turbulence is linear?!?
Adjoint DNS
Solution of the adjoint problem to the Navier-Stokes system. Important
topic in turbulence control.
Turbulent annular pipe flow
Simple and basic flow, yet not studied with DNS hitherto
Oscillating wall
There is still much to do with this drag-reducing technique.
Oscillating (turbulent) boundary layer
A flat plate with harmonic oscillations. The laminar solution is the
well-known Stokes solution. We are working out the turbulent regime...
Convection velocity in turbulent wall flows
The onvection velocity near the wall is very different from the local
mean velocity!
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