201 citations · 1.7k across the 56 of their papers we have counts for
56 papers
Entrainment of the suprachiasmatic nucleus network by a light-dark cycle
Jinshan Xu, Changgui Gu, Alain Pumir +2
The synchronization of biological activity with the alternation of day and night (circadian rhythm) is performed in the brain by a group of neurons, constituting the suprachiasmati…
Energy transfer and vortex structures: Visualizing the incompressible turbulent energy cascade
Ryan McKeown, Alain Pumir, Shmuel M. Rubinstein +2
The transfer of kinetic energy from large to small scales is a hallmark of turbulent flows. Yet, a precise mechanistic description of this transfer, which is expected to occur via…
Vorticity-strain rate dynamics and the smallest scales of turbulence
Dhawal Buaria, Alain Pumir
Building upon the intrinsic properties of Navier-Stokes dynamics, namely the prevalence of intense vortical structures and the interrelationship between vorticity and strain rate,…
Experimental validation of fluid inertia models for a cylinder settling in a quiescent flow
F. Cabrera, M. Z. Sheikh, B. Mehlig +4
The precise description of the motion of anisotropic particles in a flow rests on the understanding of the force and torque acting on them. Here, we study experimentally small, ver…
Generation of intense dissipation in high Reynolds number turbulence
Dhawal Buaria, Alain Pumir, Eberhard Bodenschatz
Intense fluctuations of energy dissipation rate in turbulent flows result from the self-amplification of strain rate via a quadratic nonlinearity, with contributions from vorticity…
Instability and disintegration of vortex rings during head-on collisions and wall interactions
Aakash Mishra, Alain Pumir, Rodolfo Ostilla-Mónico
The head-on collision of two vortex rings can produce diverse phenomena: a tiara of secondary rings, vortex sheets which flatten and interact iteratively, or the violent disintegra…