| 基于格子Boltzmann方法的建筑自然通风仿真 |
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| 引用本文： | 黄光球,王辉,陆秋琴.基于格子Boltzmann方法的建筑自然通风仿真[J].系统仿真学报,2011,23(12):2816-2821. |
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| 作者姓名： | 黄光球 王辉 陆秋琴 |
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| 作者单位： | 西安建筑科技大学管理学院,西安,710055 |
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| 基金项目： | 陕西省科学技术研究发展计划项目(2011K06-08); 陕西省教育厅科技计划项目(09JK524,11JK0772) |
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| 摘 要： | 为了研究建筑内自然通风条件下的气流流动规律和预测气流分布状况,在建筑流场低速不可压假设下,构建建筑自然通风的格子Boltzmann二维仿真计算模型,把整个建筑流场分为室内区域和室外区域;对于低雷诺数情况,提出了基于D2G9的建筑流场LBM仿真模型;对于高雷诺数建筑流场,提出了建筑流场LBM-LES仿真模型;对建筑平直墙壁用反弹格式,而对于弯曲墙壁采用曲边界格式。最后使用该方法分别计算雷诺数Re=500和Re=5000自然通风建筑流场的气流分布,并把该模拟结果和Fluent 6.1软件模拟结果进行了对比分析,证明该方法是一种行之有效的建筑流场仿真方法。
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| 关 键 词： | 建筑自然通风 格子Boltzmann方法 大涡模拟 计算机仿真 |
Simulation of Natural Ventilation in Building Based on Lattice Boltzmann Method |
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| HUANG Guang-qiu,WANG Hui,LU Qiu-qin.Simulation of Natural Ventilation in Building Based on Lattice Boltzmann Method[J].Journal of System Simulation,2011,23(12):2816-2821. |
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| Authors: | HUANG Guang-qiu WANG Hui LU Qiu-qin |
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| Institution: | HUANG Guang-qiu,WANG Hui,LU Qiu-qin(Management College,Xi'an University of Architecture & Technology,Xi'an 710055,China) |
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| Abstract: | To study the air flowing regularities of natural ventilation and predict the distribution of airflow inside a building,a new 2D lattice Boltzmann method for natural ventilation in building was constructed on condition that the air is incompressible and the velocity of flow field is low.The total flow field of building was divided into indoor and outdoor regions;a 2D Boltzmann model based D2G9 and LBM-LES model of natural ventilation in building was proposed for the low and high Reynolds number region respec... |
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| Keywords: | natural ventilation in building lattice Boltzmann method large-eddy simulation computer simulation |
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