3 papers
physics.flu-dyn2020
Calculation of the mean velocity profile for strongly turbulent Taylor--Couette flow and arbitrary radius ratios
Pieter Berghout, Roberto Verzicco, Richard J. A. M. Stevens +2
Taylor--Couette (TC) flow is the shear-driven flow between two coaxial independently rotating cylinders. In recent years, high-fidelity simulations and experiments revealed the sha…
physics.flu-dyn2019
Controlling secondary flow in Taylor-Couette turbulence through spanwise-varying roughness
Dennis Bakhuis, Rodrigo Ezeta, Pieter Berghout +7
Highly turbulent Taylor-Couette flow with spanwise-varying roughness is investigated experimentally and numerically (direct numerical simulations (DNS) with an immersed boundary me…
physics.flu-dyn2018
Direct numerical simulations of Taylor--Couette turbulence: the effect of sand grain roughness
Pieter Berghout, Xiaojue Zhu, Daniel Chung +3
Progress in roughness research, mapping any given roughness geometry to its fluid dynamic behaviour, has been hampered by the lack of accurate and direct measurements of skin-frict…