Beat Lüthi
ETH Zurich
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Publication
Featured researches published by Beat Lüthi.
Journal of Fluid Mechanics | 2005
Beat Lüthi; A. Tsinober; Wolfgang Kinzelbach
The full set of velocity derivatives,
Journal of Fluid Mechanics | 2008
Markus Holzner; Alex Liberzon; N. Nikitin; Beat Lüthi; Wolfgang Kinzelbach; A. Tsinober
\partial u_{i}/\partial x_{j}
Journal of Fluid Mechanics | 2007
G. Gulitski; M. Kholmyansky; Wolfgang Kinzelbach; Beat Lüthi; A. Tsinober; S. Yorish
, is measured experimentally in a Lagrangian way in quasi-homogeneous isotropic turbulence. This is achieved by applying the three-dimensional particle tracking velocimetry (3D-PTV) technique to an electromagnetically forced flow with
Journal of Fluid Mechanics | 2005
Michele Guala; Beat Lüthi; Alex Liberzon; A. Tsinober; Wolfgang Kinzelbach
\hbox{\it Re}_{\lambda}\,{\thickapprox}\,50
Physics of Fluids | 2005
Alex Liberzon; Michele Guala; Beat Lüthi; Wolfgang Kinzelbach; A. Tsinober
. Checks based on precise kinematic relations show that the technique presented measures the velocity derivatives with good accuracy. In a study on vorticity, characteristic properties of turbulent flows known from direct numerical simulations are reproduced. These are the positive skewness of the intermediate eigenvalue of the rate of strain tensor,
Physics of Fluids | 2012
Marc Wolf; Beat Lüthi; Markus Holzner; Dominik Krug; Wolfgang Kinzelbach; A. Tsinober
s_{ij}
Journal of Fluid Mechanics | 2009
Beat Lüthi; Markus Holzner; A. Tsinober
,
Journal of Fluid Mechanics | 2007
G. Gulitski; M. Kholmyansky; Wolfgang Kinzelbach; Beat Lüthi; A. Tsinober; S. Yorish
\langle \Lambda_{2}\rangle \,{>}\,0
Journal of Fluid Mechanics | 2007
G. Gulitski; M. Kholmyansky; Wolfgang Kinzelbach; Beat Lüthi; A. Tsinober; S. Yorish
, the predominance of vortex stretching over vortex compression,
Magnetic Resonance in Medicine | 2014
Verena Knobloch; Christian Binter; Utku Gülan; Andreas Sigfridsson; Markus Holzner; Beat Lüthi; Sebastian Kozerke
\langle \omega_{i}\omega_{j}s_{ij}\rangle \,{>}\,0