Modelling and Numerical Calculation of Turbulent Gas-Solids Flows with the Euler/Lagrange Approach
| Autor: | Martin Sommerfeld |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | KONA Powder and Particle Journal, Vol 16, Iss 0, Pp 194-206 (2014) |
| Druh dokumentu: | article |
| ISSN: | 0288-4534 2187-5537 |
| DOI: | 10.14356/kona.1998022 |
| Popis: | The paper summarises recent developments of the Euler/Lagrange approach for the prediction of particulate two-phase flows. Based on detailed experiments, the modelling of particle-wall collisions, including the effect of wall roughness, could be considerably improved. Moreover, a stochastic approach was developed for modelling inter-particle collisions which were found to be quite important even for low particle mass loading. Model calculations with inter-particle collisions were validated based on large eddy simulations for a homogeneous isotropic turbulence field. The effect of inter-particle collisions on the development of a particle-laden horizontal channel flow was analysed in detail by varying particle size and mass loading. Numerical predictions were performed for pneumatic conveying in a horizontal pipe and compared with measurements by phase-Doppler anemometry in order to further validate the developed models. |
| Databáze: | Directory of Open Access Journals |
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