Lattice Boltzmann application for a viscoplastic fluid flow and heat transfer into cubic enclosures

被引：1
|
作者：
Boutra, Abdelkader [1 ,2 ]
Ragui, Karim [1 ]
Labsi, Nabila [1 ]
Benkahla, Youb Khaled [1 ]
Bennacer, Rachid [3 ]
机构：
[1] USTHB, Lab Transport Phenomena, Algiers, Algeria
[2] Preparatory Sch Sci & Technol, Algiers, Algeria
[3] Paris Saclay Univ, CNRS, ENS Cachan, LMT, F-94230 Cachan, France
来源：
MATERIALS & ENERGY I (2015) / MATERIALS & ENERGY II (2016) | 2017年 / 139卷
关键词：
Numerical investigation; natural convection; cubic enclosure; Bingham fluid; Lattice Boltzmann method; POWER-LAW FLUIDS; 3-DIMENSIONAL NATURAL-CONVECTION; RECTANGULAR CAVITY; MIXED CONVECTION; LAMINAR-FLOW; SIMULATION;
D O I：
10.1016/j.egypro.2017.11.192
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The present work deals with a Tri-dimensional natural convection into a cubical enclosure, completely filled with a yield fluid which obeying the Bingham rheological model. A thermal gradient is governed by a uniform temperature imposed on the right and the left walls, when the other surfaces are kept insulated. To solve the governing equations, a numerical code based on the Lattice Boltzmann method is used. The latter has been validated after comparison between the present results and those of the literature. Regarding the Bingham number effect on heat transfer rate inside the enclosure, the convection phenomenon is analyzed through the isotherm plots and its temperature profiles with special attention to the local Nusselt number of the active walls. (C) 2017 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：173 / 179
页数：7
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