Transient numerical simulation of coupled heat and moisture flow through a green roof

被引：6
|
作者：
Skerget, L. [1 ,2 ]
Tadeu, A. [2 ,3 ]
Brebbia, C. A. [1 ]
机构：
[1] Wessex Inst Technol, Southampton SO40 7AA, Hants, England
[2] ITeCons Inst Res & Technol Dev Construct Energy E, Rua Pedro Hispano S-N, P-3030289 Coimbra, Portugal
[3] Univ Coimbra, Dept Civil Engn, ADAI LAETA, Polo 2,Rua Luis Reis Santos, P-3030788 Coimbra, Portugal
来源：
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2018年 / 95卷
关键词：
Green roofs; Coupled heat and moisture transport through; the canopy; The soil and the structural support; Transient numerical simulation and modelling; Boundary element method; BOUNDARY-ELEMENT METHOD; WATER-UPTAKE; MODEL;
D O I：
10.1016/j.enganabound.2018.06.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper reports a mathematical model governing unsteady coupled moisture and heat energy transport through a green roof, e.g. the canopy (leaf cover), the soil and the structural support. The mathematical model that governs the transport phenomena in the canopy is represented by a system of nonlinear ordinary differential equations (ODEs) for the unknown temperature of the plants, and the unknown temperature and moisture content of the canopy air. A set of nonlinear partial differential equations (PDEs) describe the heat and moisture transport through the soil and structural support. Continuous field functions such as temperature and relative humidity, are considered as the driving potentials. A finite difference numerical model is used to solve the ODEs and the boundary element numerical model is used to discretize the PDEs.
引用
收藏
页码：53 / 68
页数：16
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