Direct numerical simulation of strained turbulence and particles within

ORAL

Abstract

We present results from direct numerical simulations of strained turbulent flows. Our focus is on the influence of the straining on the motions of passive and inertial particles of varied Stokes numbers. The results are compared with existing numerical and experimental data, and we seek to emphasize the effects of the strain geometry and strain rate on the particle behavior. Eulerian flow field results, and the Lagrangian particle velocity and acceleration statistics are presented. The Rogallo algorithm is applied for simulating the flow field in a non-cubical domain.

Authors

  • Chung-min Lee

    California State University Long Beach

  • Prasad Perlekar

    Technische Universiteit Eindhoven, Department of Physics, and Department of Mathematics and Computer Science, Eindhoven University of Technology, Eindhoven

  • Federico Toschi

    Technische Universiteit Eindhoven, Dept. Applied Physics, Technische Universiteit Eindhoven

  • \'Armann Gylfason

    Reykjavik University