244 citations · 4.7k across the 124 of their papers we have counts for
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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…
Dynamics and evolution of Turbulent Taylor rolls
Francesco Sacco, Roberto Verzicco, Rodolfo Ostilla-Mónico
In many shear- and pressure-driven wall-bounded turbulent flows secondary motions spontaneously develop and their interaction with the main flow alters the overall large-scale feat…
Flow induced dissolution of femtoliter surface droplet arrays
Lei Bao, Vamsi Spandan, Yantao Yang +4
The dissolution of liquid nanodroplets is a crucial step in many applied processes, such as separation and dispersion in food industry, crystal formation of pharmaceutical products…
Physical mechanisms governing drag reduction in turbulent Taylor-Couette flow with finite-size deformable bubbles
Vamsi Spandan, Roberto Verzicco, Detlef Lohse
The phenomenon of drag reduction induced by injection of bubbles into a turbulent carrier fluid has been known for a long time; the governing control parameters and underlying phys…
A fast moving least squares approximation with adaptive Lagrangian mesh refinement for large scale immersed boundary simulations
Vamsi Spandan, Detlef Lohse, Marco D. de Tullio +1
In this paper we propose and test the validity of simple and easy-to-implement algorithms within the immersed boundary framework geared towards large scale simulations involving th…
Rough wall turbulent Taylor-Couette flow: the effect of the rib height
Ruben A. Verschoof, Xiaojue Zhu, Dennis Bakhuis +4
In this study, we combine experiments and direct numerical simulations to investigate the effects of the height of transverse ribs at the walls on both global and local flow proper…