Particle-Pair Relative Velocity Measurement in High-Reynolds-Number Homogeneous and Isotropic Turbulence Using 4-Frame Particle Tracking Velocimetry
arXiv:1712.07506 · doi:10.1007/s00348-017-2481-0
Abstract
The radial relative velocity between particles suspended in turbulent flow plays a critical role in droplet collision and growth. We present a simple and accurate approach to RV measurement in isotropic turbulence - planar 4-frame particle tracking velocimetry - using routine PIV hardware. This study demonstrates the feasibility of accurately measuring RV using routine hardware and verifies, for the first time, the path-history and inertial filtering effects on particle-pair RV at large particle separations experimentally.
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Cited by in corpus (5)
- Dynamics of small heavy particles in homogeneous turbulence: a Lagrangian experimental study
- An experimental study on the multiscale properties of turbulence in bubble-laden flows
- Hydrodynamic interactions and extreme particle clustering in turbulence
- Particle Radial Distribution Function and Relative Velocity Measurement in Turbulence at Small Particle-Pair Separations
- Lagrangian Coherent Track Initialisation (LCTI)