Obrist, Dominik, PD Dr.

Curriculum Vitae

Research

link to research page

Biomedical fluid dynamics

• Transient fluid dynamics of the cochlea
• Fluid mechanics of the semicircular canals
• Top-shelf Vertigo (Benign Paroxysmal Positional Vertigo, BPPV)
• Fluid mechanics of Tullio's phenomenon
• Red blood cell transport in capillary networks
• Velocity measurement in capillary bifurcations with two-photon microscopy
• Fluid dynamics of biological aortic heart valve prostheses
• Gastric mixing
• Interproximal flow generated by sonic toothbrushes

Hydrodynamic stability

• Hydrodynamic stabilty of the leading-edge boundary layer
• Subcritical spatial transition of the swept Hiemenz boundary layer
• Theory of wave packet pseudomodes

Aeroacoustics

• Acoustic emissions from wave packets to the far field
• Computation of aeroacoustic noise in the far-field
• Aeroacoustics of subsonic co-axial jets

Numerical methods and high-performance computing

• Multilevel method of fundamental solutions (MFS) for Stokes flow
• Parallelization of time-periodic flow problems on massively parallel supercomputers
• High-fidelity simulation of incompressible flows on massively parallel supercomputers

Teaching

• Biofluiddynamics, FS13
• Hydrodynamic Stability & Transition, FS13

Selected Publications

• Landolt A., Obrist D., Wyss M., Barrett M., Langer D., Jolivet R., Soltisynki T., Roesgen T., Weber B., Two-photon microscopy with double-circle trajectories for in vivo cerebral blood flow measure-ments, Exp Fluids, 54(1523), 1-8, doi:10.1007/s00348-013-1523-5, 2013.
• Pfenniger A., Obrist D., Stahel A., Koch V. M., Vogel R., Energy Harvesting through Arterial Wall De-formation: Design Considerations for a Magneto-Hydrodynamic Generator, Med Biol Eng Comput, 1-15, doi: 10.1007/s11517-012-0989-2, 2013.
• Boselli F., Obrist D., Kleiser L., Vortical flow in the utricle and the ampulla: A computational study on the fluid dynamics of the vestibular system, Biomech. Model. Mechanobiol., doi: 10.1007/s10237-012-0402-y, 2012, available online.
• Boselli F., Obrist D., Kleiser L., A Multilayer Method of Fundamental Solutions for Stokes flow problems, J. Comp. Phys., 231(18), 6139-6158, doi: 10.1016/j.jcp.2012.05.023 , 2012.
• Obrist D., Henniger R., Kleiser L., Subcritical spatial transition of swept Hiemenz flow, Int. J. Heat Fluid Flow, doi: 10.1016/j.ijheatfluidflow.2012.01.012, 2012, available online.
• Erb R. M., Obrist D., Chen P. W., Studer J., Studart A. R., Predicting sizes of droplets made by micro-fluidic flow-induced dripping, Soft Matter, doi: 10.1039/C1SM06231J, 2011.
• Obrist D., Schmid P.J., Algebraically diverging modes upstream of a swept bluff body, J. Fluid Mech., 683, 346-356, doi: 10.1017/jfm.2011.269, 2011.
• Obrist D., Acoustic emissions from convected wave packets, Phys. Fluids, 23(2), 026101-14, doi: 10.1063/1.3540693, 2011.
• Obrist D., Weber B., Buck A., Jenny P., Red blood cell distribution in simplified capillary networks, Phil. Trans. R. Soc. A, 368(1921), 2897-2918, doi: 10.1098/rsta.2010.0045, 2010.
• Henniger R., Obrist D., Kleiser L., High-order accurate solver for the Navier–Stokes equations on massively parallel computers. J. Comp. Phys., 229(10), 3543-3572, doi:10.1016/j.jcp.2010.01.015, 2010.
• Obrist D., Schmid P.J., Algebraically decaying modes and wave packet pseudomodes in swept Hiemenz flow, J. Fluid Mech., 643, 309-332, doi: 10.1017/S0022112009992114, 2010.
• Obrist D., Hegemann S., Kronenberg D., Häuselmann O., Rösgen T., In-vitro model of a semicircular canal: design and validation of the model and its use for the study of canalithiasis, J. Biomech., 43, 1208-1214, doi: 10.1016/j.jbiomech.2009.11.027, 2010.
• Syburra T., Landolt A., Rösgen T., Obrist D., Genoni M., Fluid Dynamics in Aortic Valve Bioprostheses: A Novel Approach, Valves in the Heart of the Big Apple VI, April 15-17 2010, New York, Cardiology, 115, 288, doi: 10.1159/000308357, 2010.
• Obrist D., Directivity of acoustic emissions from wave packets to the far-field, J. Fluid Mech., 640, 165-186, doi: 10.1017/S0022112009991297, 2009.
• Obrist D., Schmid P.J., Wave packet pseudomodes upstream of a swept cylinder, 7th IUTAM Symposium on Laminar-Turbulent Transition, June 23-26 2009, Stockholm, 2009.
• Obrist D., Fluidmechanics of semicircular canals - revisited, Z. angew. Math. Phys. 59(3), 475-497, doi: 10.1007/s00033-007-6037-7, 2008.
• Obrist D., Hegemann S., Fluid-particle dynamics in canalithiasis, J. R. Soc. Interface 5(27), 1215-1229, doi: 10.1098/rsif.2008.0047, 2008.
• Obrist D., Kleiser L., Rösgen T., Particle trajectories in semicircular canals with canalithiasis, 16th Congress European Society of Biomechanics ESB 2008, 6-9 July 2008, Lucerne, J. Biomech. S1, S308, 2008.
• Obrist D., Schmid P.J., Resonance in the cochlea with wave packet pseudomodes, 22nd International Congress of Theoretical and Applied Mechanics (ICTAM2008), August 24-30 2008, Adelaide, ISBN 978-0-9805142-0-9, 2008.
• Theofilis V., Fedorov A., Obrist D., Dallmann U.C., The extended Görtler–Hämmerlin model for linear instability of three-dimensional incompressible swept attachment-line boundary layer flow. J. Fluid Mech. 487, 271-313, 2003.
• Obrist D., Schmid P.J., On the linear stability of swept attachment-line boundary layer flow. Part I: Spectrum and asymptotic behavior. J. Fluid Mech. 493, 1-29, 2003.
• Obrist D., Schmid P.J., On the linear stability of swept attachment-line boundary layer flow. Part II: Nonmodal effects and receptivity. J. Fluid Mech. 493, 31-58, 2003.
• Kerswell R.R., Obrist D., Schmid, P.J., On smoothed turbulent shear flows: Bounds, numerics and stress-reducing additives. Phys. Fluids. 15, 78-83, 2003.
• Obrist D., On the stability of the swept leading-edge boundary layer, Doctoral thesis, University of Washington, Seattle, 2000.

full list of publications