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Turbulence Heat and Mass Transfer 5. Proceedings of the International Symposium on Turbulence Heat and Mass Transfer
September, 25-29, 2006, Dubrovnik, Croatia

DOI: 10.1615/ICHMT.2006.TurbulHeatMassTransf


ISBN Print: 978-1-56700-229-4

ISSN: 2377-2816

Lattice Boltzmann simulation of flow in the human upper airway

pages 305-308
DOI: 10.1615/ICHMT.2006.TurbulHeatMassTransf.570
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ABSTRACT

The Lattice Boltzmann method (LBM) was used to conduct computational studies of the airflow inside an idealised human upper airway. Results from both a lower resolution (18 million control volumes) and a higher resolution (148 million control volumes) LBM simulation were compared to those from traditional Reynolds averaged Navier-Stokes (RANS) computational methods [2, 3] and to experimental results [12, 11]. For the mean statistics, the LBM calculations yield better results than do the RANS methods; the LBM reproduces significant detail of experimentally observed flow features. Because of the three-dimensional and (probable) unsteady nature of the flow, sagittal plane and time-steady measurements alone are insufficient to verify the accuracy of computational predictions of this flow.

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