Enhancement of CFD validation exercise along the roof profile of a low-rise building

4th International Conference on Civil and Environmental Engineering for Sustainability

地球科学;生态环境科学;经济学

Deraman, S.N.C.^1 ; Majid, T.A.^1 ; Zaini, S.S.^1 ; Yahya, W.N.W.^1 ; Abdullah, J.^1 ; Ismail, M.A.^2

Disaster Research Nexus, School of Civil Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal, Penang

14300, Malaysia^1

Advance Packaging and SMT Group, School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal, Penang

14300, Malaysia^2

关键词: CFD simulations;    Cfd validations;    Error measures;    Input parameter;    Low-rise buildings;    Pressure coefficients;    Quantitative tests;    RANS equation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/140/1/012004/pdf
DOI  :  10.1088/1755-1315/140/1/012004

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The aim of this study is to enhance the validation of CFD exercise along the roof profile of a low-rise building. An isolated gabled-roof house having 26.6° roof pitch was simulated to obtain the pressure coefficient around the house. Validation of CFD analysis with experimental data requires many input parameters. This study performed CFD simulation based on the data from a previous study. Where the input parameters were not clearly stated, new input parameters were established from the open literatures. The numerical simulations were performed in FLUENT 14.0 by applying the Computational Fluid Dynamics (CFD) approach based on steady RANS equation together with RNG k- model. Hence, the result from CFD was analysed by using quantitative test (statistical analysis) and compared with CFD results from the previous study. The statistical analysis results from ANOVA test and error measure showed that the CFD results from the current study produced good agreement and exhibited the closest error compared to the previous study. All the input data used in this study can be extended to other types of CFD simulation involving wind flow over an isolated single storey house.