Hygrothermal Simulation of Wood Exposed To the Effect of External Climate

World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS

土木建筑工程

Dohnal, Jakub^1 ; Hradil, Petr^2 ; Pencik, Jan^1

Brno University of Technology, Faculty of Civil Engineering, Veveri 331/95, Brno

602 00, Czech Republic^1

VTT Technical Research Centre of Finland LTD, Kemistintie 3, Espoo, Finland^2

关键词: Climatic conditions;    Experimental specimens;    Hygrothermal simulation;    In-situ measurement;    Moisture transfer;    Precipitation data;    Specimen surfaces;    Surface sorptions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/245/3/032087/pdf
DOI  :  10.1088/1757-899X/245/3/032087

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The article is focused on simulation of moisture transfer in wood of Norway spruce (Picea abies L.). Experimental specimen was exposed to the northern climatic conditions in Lund University, Sweden. The moisture content of wood was measured 10 mm from the surface for nearly three years. The ABAQUS program was used for numerical modelling of moisture transfer simulation in 3D. The surface sorption of wood was simulated using user defined subroutine DFLUX developed by VTT Research Centre of Finland Ltd. for the needs of European Project Durable Timber Bridges. Climate data for the analysis was used from insitu measurement nearby realized by weather station. The temperature, relative humidity of the air and precipitation data was record each hour. Numerical analysis took into account influence of rain effect on different parts of specimen surface.