Onset of turbulence in particle-laden pipe flows

Journal article (2022)

Authors

Willian Hogendoorn Multi Phase Systems - Mechanical, Maritime and Materials Engineering
B. Chandra Indian Institute of Science Education and Research (IISER) Bhopal, Multi Phase Systems - Mechanical, Maritime and Materials Engineering
Christian Poelma Process and Energy
Research Group
Multi Phase Systems (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2022 W.J. Hogendoorn, B. Chandra, C. Poelma
DOI: https://doi.org/10.1103/PhysRevFluids.7.L042301
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Published Date

2022

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Multi Phase Systems

Abstract

We propose a scaling law for the onset of turbulence in pipe flow of neutrally buoyant suspensions. This scaling law, based on a large set of experimental data, relates the amplitude of the particle-induced perturbations ε to the critical suspension Reynolds number Res,c. Here ε is a function of the particle-to-pipe diameter ratio and the volume fraction of the suspended particles, ε=(d/D)1/2ϕ1/6. Res,c is found to scale as ε−1. Furthermore, the perturbation amplitude allows a distinction between classical, intermediate, and particle-induced transitions.

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