Transient Free Convection and Heat Transfer in a Partitioned Attic-Shaped Space under Diurnal Thermal Forcing

作     者：Suvash C.Saha Ali M.Sefidan Atta Sojoudi Mohammad M.Molla 

作者机构：School of Mechanical and Mechatronic EngineeringFaculty of Engineering and Information TechnologyUniversity of Technology SydneyUltimoNSW 2007Australia Mechanical Engineering DepartmentUniversity of CanterburyChristchurch8041New Zealand Mechanical Engineering DepartmentUniversity of TehranTehranIran Department of Mathematics and PhysicsNorth South UniversityDhaka1229Bangladesh 

出 版 物：《Energy Engineering》 (能源工程（英文）)

年 卷 期：2021年第118卷第3期

页      面：487-506页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0808[工学-电气工程] 080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Free convection attic space partitioned diurnal thermal forcing computational fluid dynamics 

摘      要：One primordial consideration in residential ventilation standards is the comfort of provided to people living in those *** is highly dependent on the thermal and fluid flow conditions,the space geometry and so *** designs may reduce the energy usage,making the buildings more sustainable over a longer period of *** study aims to investigate the impact of whole day thermal conditions on the fluid flow structure and heat transfer phenomena,mainly natural convection,inside a partitioned attic-shaped *** Finite Volume Method is applied to solve the governing *** thermal boundary condition is applied on the sloping walls to illustrate the characteristics of primary flow through daily cycles.A highly thermal conductive partition was placed vertically at the middle of the *** that through the partition,only heat could freely transfer between two fluid *** show that,during day time,a stratified fluid flow structure is obtained,which originates from the prevailing conduction heat transfer mechanism,while,for the night-time it changed into a strong convection mechanism which significantly affects the flow *** results are particularly important for understanding the fluid dynamics inside the attic shaped building and also designing new residential building.