Velocity and acceleration statistics in particle-laden turbulent swirling flows
Sofía Angriman, Pablo D. Mininni, Pablo J. Cobelli
Abstract
Particle-laden turbulent flows in von Karman laboratory experiments and in Taylor-Green direct numerical simulations display remarkable similarities, both for tracers as well as for inertial particles. A method to test models for particle dynamics in turbulent flows, exploiting these similarities, is presented. The effect of the mean flow is also considered, showing how it impacts scaling properties of particles' statistics, and how it affects inertial range behavior.
Topics & Concepts
TurbulenceScalingMechanicsAccelerationInertial frame of referenceRange (aeronautics)PhysicsFlow (mathematics)Classical mechanicsParticle (ecology)Scale (ratio)Statistical physicsChézy formulaDirect numerical simulationParticle accelerationMean flowKolmogorov microscalesDynamics (music)Two-dimensional flowKármán vortex streetK-epsilon turbulence modelFlow velocityMathematical modelMathematicsPosition (finance)Particle Dynamics in Fluid FlowsFluid Dynamics and Turbulent FlowsLattice Boltzmann Simulation Studies