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Abstract
A non-isothermal turbulent flow with the dispersed phase is modelled using the Large Eddy Simulation (LES) approach for fluid, one-way coupled with the equations of point-particle evolution. The channel is heated at both walls and isoflux boundary conditions are applied for fluid. Particle velocity and thermal statistics are computed. Of particular interest are the r.m.s. profiles and the probability density function of particle temperature in the near-wall region. We compare our findings with available reference data for particle-laden, heated channel flow. Moreover, an open issue in LES is the influence of non-resolved (residual) scales of fluid velocity and temperature fields on particles. In the present contribution, we apply a stochastic model for subfilter fluid velocity at the particle positions that aims at reconstructing the effects of the smallest scales of turbulence on particle dynamics. We analyse the impact of this model on particle thermal statistics.
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1088/1742-6596/333/1/012014
- License
- Copyright (2011 IOP Publishing Ltd)
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Journal of Physics : Conference Series
no. 333,
ISSN: 1742-6588 - Language:
- English
- Publication year:
- 2011
- Bibliographic description:
- Pozorski J., Knorps M., Łuniewski M.: Effects of subfilter velocity modelling on dispersed phase in LES of heated channel flow// Journal of Physics : Conference Series -Vol. 333, (2011),
- DOI:
- Digital Object Identifier (open in new tab) 10.1088/1742-6596/333/1/012014
- Verified by:
- Gdańsk University of Technology
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