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Computation 2017, 5(2), 23; doi:10.3390/computation5020023

Implicit Large Eddy Simulation of Flow in a Micro-Orifice with the Cumulant Lattice Boltzmann Method

Institute for Computational Modeling in Civil Engineering, TU Braunschweig, 38106 Braunschweig, Germany
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Academic Editor: Christian F. Janßen
Received: 29 March 2017 / Revised: 24 April 2017 / Accepted: 27 April 2017 / Published: 5 May 2017
(This article belongs to the Special Issue CFD: Recent Advances in Lattice Boltzmann Methods)

Abstract

A detailed numerical study of turbulent flow through a micro-orifice is presented in this work. The flow becomes turbulent due to the orifice at the considered Reynolds numbers (∼ 10 4 ). The obtained flow rates are in good agreement with the experimental measurements. The discharge coefficient and the pressure loss are presented for two input pressures. The laminar stress and the generated turbulent stresses are investigated in detail, and the location of the vena contracta is quantitatively reproduced. View Full-Text
Keywords: lattice Boltzmann method; orifice; discharge coefficient; implicit large eddy simulation lattice Boltzmann method; orifice; discharge coefficient; implicit large eddy simulation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Kian Far, E.; Geier, M.; Kutscher, K.; Krafczyk, M. Implicit Large Eddy Simulation of Flow in a Micro-Orifice with the Cumulant Lattice Boltzmann Method. Computation 2017, 5, 23.

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