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Microbubbles and Microparticles are Not Faithful Tracers of Turbulent Acceleration

Research paper by Varghese Mathai, Enrico Calzavarini, Jon Brons, Chao Sun, Detlef Lohse

Indexed on: 10 Jul '16Published on: 08 Jul '16Published in: Physical review letters



Abstract

Author(s): Varghese Mathai, Enrico Calzavarini, Jon Brons, Chao Sun, and Detlef LohseWe report on the Lagrangian statistics of acceleration of small (sub-Kolmogorov) bubbles and tracer particles with Stokes number St≪1 in turbulent flow. At a decreasing Reynolds number, the bubble accelerations show deviations from that of tracer particles; i.e., they deviate from the Heisenberg-Yag…[Phys. Rev. Lett. 117, 024501] Published Fri Jul 08, 2016