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Simulation of Natural Convection in an Inclined SquareCavity Based on Lattice Boltzmann Method(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2018年04期
Page:
19-
Research Field:
动力工程
Publishing date:

Info

Title:
Simulation of Natural Convection in an Inclined SquareCavity Based on Lattice Boltzmann Method
Author(s):
Zhu Jianqi1; Hou Jiayu1; Gao Dongyan2; Lin Fujian1; Chen Weiwei1; Lu Shihua1
(1.School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210042,China)(2.School of Energy and Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China)
Keywords:
natural convection; Lattice Boltzmann method; numerical simulation; inclined angle
PACS:
TK124
DOI:
10.3969/j.issn.1672-1292.2018.04.004
Abstract:
Using the Lattice Boltzmann method,we study the natural convection heat transfer in a two-dimensional closed square cavity. Numerical simulation is carried out to obtain the situation of the flow field and temperature field in the closed square cavity under different Rayleigh numbers and inclined angles. According to the flow field and temperature field,the influences of Rayleigh numbers and inclined angles on the natural convection heat transfer in the closed square cavity are analyzed. The results show that the increase of Rayleigh numbers enhanced the natural convection heat transfer,while the increase of the inclined angles leads the natural convection heat transfer to increase or decrease. At the same time,when the inclined angle is 90°,the natural convection heat transfer is the weakest.

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Last Update: 2018-12-30