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Modelling and simulation of single- and multi-phase axisymmetric impinging jets

M. Garlick
School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, M13 9PL

Timothy J. Craft
Turbulence Mechanics Group, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, PO Box 88, Manchester M13 9PL, UK

Michael Fairweather
School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK

要約

The impinging jet is an industrially relevant geometry which provides a suitable test case since it contains a number of flow features turbulence models are known to predict poorly. A RANS turbulent flow model and an LES have been used to predict the continuous phase of an axisymmetric impinging jet and validated against experimental data, allowing the strengths and weaknesses of both approaches to be assessed. Using the continuous phase velocity field, particles are subsequently added as a post-process using a one-way coupled Lagrangian particle tracker. The effects of particle size are investigated as well as the sensitivity of the solution to the continuous phase turbulence field, with results from both predictive approaches compared.

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