Print Email Facebook Twitter Effect of particle inertia and gravity on the turbulence in a suspension Title Effect of particle inertia and gravity on the turbulence in a suspension Author Ooms, G. Poesio, P. Faculty Mechanical, Maritime and Materials Engineering Department Process and Energy Date 2005-12-06 Abstract A theoretical model is presented for the effect of particle inertia and gravity on the turbulence in a homogeneous suspension. It is an extension of the one-fluid model developed by L’vov, Ooms, and Pomyalov [Phys. Rev. E 67, 046314 (2003)] , in which the effect of gravity was not considered. In the extended model the particles are assumed to settle in the fluid under the influence of gravity due to the fact that their density is larger than the fluid density. The generation of turbulence by the settling particles is described, with special attention being paid to the turbulence intensity and spectra. A comparison is made with direct numerical simulation calculations and experimental data. Also a sensitivity study is carried out to investigate at which conditions the gravity effect becomes important. Subject gravity wavesturbulencesuspensionstwo-phase flow To reference this document use: http://resolver.tudelft.nl/uuid:a5e99cea-454a-42ee-82d2-bb9b87edd25c DOI https://doi.org/10.1063/1.2139683 Publisher American Institute of Physics ISSN 1070-6631 Source Physics of Fluids, 17 (12), 2005 Part of collection Institutional Repository Document type journal article Rights (c) 2005 The Author(s); American Institute of Physics Files PDF Ooms_2005.pdf 388.87 KB Close viewer /islandora/object/uuid:a5e99cea-454a-42ee-82d2-bb9b87edd25c/datastream/OBJ/view