514 citations · 3.5k across the 67 of their papers we have counts for
7 papers · 1 filter
Controlling heat transport and flow structures in thermal turbulence using ratchet surfaces
Hechuan Jiang, Xiaojue Zhu, Varghese Mathai +3
In this combined experimental and numerical study on thermally driven turbulence in a rectangular cell, the global heat transport and the coherent flow structures are controlled wi…
Finite-sized rigid spheres in turbulent Taylor-Couette flow
Dennis Bakhuis, Ruben A. Verschoof, Varghese Mathai +3
We report on the modification of drag by neutrally buoyant spherical particles in highly turbulent Taylor-Couette flow. These particles can be used to disentangle the effects of si…
Turbulence strength in ultimate Taylor-Couette turbulence
Rodrigo Ezeta, Sander G. Huisman, Chao Sun +1
We provide experimental measurements for the effective scaling of the Taylor-Reynolds number within the bulk , based on local flow quantities as a functi…
Periodically driven Taylor-Couette turbulence
Ruben A. Verschoof, Arne K. te Nijenhuis, Sander G. Huisman +2
We study periodically driven Taylor-Couette turbulence, i.e. the flow confined between two concentric, independently rotating cylinders. Here, the inner cylinder is driven sinusoid…
Mass and moment of inertia govern the transition in the dynamics and wakes of freely rising and falling cylinders
Varghese Mathai, Xiaojue Zhu, Chao Sun +1
In this Letter, we study the motion and wake-patterns of freely rising and falling cylinders in quiescent fluid. We show that the amplitude of oscillation and the overall system-dy…
Formation of surface nanodroplets under controlled flow conditions
Xuehua Zhanga, Ziyang Lu, Huanshu Tan +4
Nanodroplets on a solid surface (i.e. surface nanodroplets) have practical implications for high-throughput chemical and biological analysis, lubrications, lab-on-chip devices, and…