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首页 > 过刊浏览>2018年第40卷第4期 >36-41. DOI:10.11835/j.issn.1674-4764.2018.04.006
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极端热湿地区围护结构热湿耦合传递模型
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TU111.4

基金项目:

国家自然科学基金（51590913、51578439、51608421）


Coupled heat and moisture transfer model of building envelope in extreme heat-moisture climate area
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    摘要:

    极端热湿地区常年高温多雨，为了准确预测围护结构内的温度和湿度分布，模拟高温、高湿和高太阳辐射对围护结构的影响，建立了适用于极端热湿地区的围护结构热湿耦合传递模型，在边界条件中加入太阳辐射和雨水负荷对传热传湿的影响，考虑了随材料含湿量不断变化的材料物性参数。为了求解模型，提出了基于计算机软件COMSOL的模型求解方法，利用MATLAB计算方程组不断变化的系数，并确定了软件容差和网格的设置条件：相对容差推荐设定在0.001，绝对容差设定为0.000 1，网格按极细化划分。通过对比HAMSTAD标准实例验证了模型的准确性。

    Abstract:

    Extreme heat-moisture climate area are always high temperature and rainy. In order to accurately predict the temperature and humidity distribution in the envelope, and simulate the effects of high temperature, high humidity and high solar radiation on the envelope, a coupled heat and moisture transfer model which takes the climate condition of extreme heat-moisture climate area into consideration is developed. The influence of solar radiation and rain load on heat and moisture transfer is considered in boundary conditions. And the changes of moisture content are taken into account in the material parameters. And a solution method based on computer soft,COMSOL and MATLAB,is proposed to solve the coupled heat and moisture transfer model simply. The COMSOL recommended setting is as follow:the relative tolerance is 0.001; the absolute tolerance is 0.0001; the mesh must be set to very fine. The numerical results of this model agree well with HAMSTAD benchmarks.

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罗戴维,刘加平,刘大龙.极端热湿地区围护结构热湿耦合传递模型[J].土木与环境工程学报（中英文）,2018,40(4):36-41. Luo Daiwei, Liu Jiaping, Liu Dalong. Coupled heat and moisture transfer model of building envelope in extreme heat-moisture climate area[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2018,40(4):36-41.10.11835/j. issn.1674-4764.2018.04.006

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  • 收稿日期:2017-10-11
  • 在线发布日期: 2018-07-05
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