Fast inertial particle manipulation in oscillating flows

Raqeeb Thameem, Bhargav Rallabandi, Sascha Hilgenfeldt

Research output: Contribution to journalArticle

Abstract

It is demonstrated that micron-sized particles suspended in fluid near oscillating interfaces experience strong inertial displacements above and beyond the fluid streaming. Experiments with oscillating bubbles show rectified particle lift over extraordinarily short (millisecond) times. A quantitative model on both the oscillatory and the steady time scales describes the particle displacement relative to the fluid motion. The formalism yields analytical predictions confirming the observed scaling behavior with particle size and experimental control parameters. It applies to a large class of oscillatory flows with applications from particle trapping to size sorting.

Original languageEnglish (US)
Article number052001
JournalPhysical Review Fluids
Volume2
Issue number5
DOIs
StatePublished - May 1 2017

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Oscillating flow
Manipulation
Fluids
Fluid
Sorting
Oscillatory Flow
Scaling Behavior
Trapping
Streaming
Particle size
Particle Size
Control Parameter
Bubble
Time Scales
Motion
Prediction
Experiments
Experiment

ASJC Scopus subject areas

  • Computational Mechanics
  • Modeling and Simulation
  • Fluid Flow and Transfer Processes

Cite this

Fast inertial particle manipulation in oscillating flows. / Thameem, Raqeeb; Rallabandi, Bhargav; Hilgenfeldt, Sascha.

In: Physical Review Fluids, Vol. 2, No. 5, 052001, 01.05.2017.

Research output: Contribution to journalArticle

Thameem, Raqeeb ; Rallabandi, Bhargav ; Hilgenfeldt, Sascha. / Fast inertial particle manipulation in oscillating flows. In: Physical Review Fluids. 2017 ; Vol. 2, No. 5.
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