Two-fluid modeling of heat transfer in flows of dense suspensions
نویسندگان
چکیده
We develop a two-fluid model (TFM) for heat transfer in dense non-Brownian suspensions. Specifically, we propose closure relations the inter-phase coefficient and thermal diffusivity of particle phase based on calibration against experimental data. The is then employed to simulate non-isothermal flow an annular Couette cell. find that, when shear rate controlled by rotation inner cylinder, both gradients are responsible migration. Within TFM framework, identify origin functional form “thermo-rheological” migration force that rationalizes our observations. Furthermore, apply eccentric cells. Our simulations reveal system’s affected classic shear-induced particles newly identified thermo-rheological effect.
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ژورنال
عنوان ژورنال: International Journal of Heat and Mass Transfer
سال: 2022
ISSN: ['1879-2189', '0017-9310']
DOI: https://doi.org/10.1016/j.ijheatmasstransfer.2021.122068