Investigation of opening position on natural cross ventilation for an isolated building

Moey, L. K. and Tok, R. J. and Tai, V. C. and Mathew, P. Reuben and Wu, J. Kai-Seu and Oumer, A. N. (2023) Investigation of opening position on natural cross ventilation for an isolated building. In: Lecture Notes in Mechanical Engineering; 6th International Conference in Mechanical Engineering Research, ICMER 2021 , 26 - 27 October 2021 , Virtual, Online. 825 -838.. ISSN 2195-4356 ISBN 978-981191456-0

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Abstract

The opening position is one of the factors that affect the ventilation performance of a building. In this study, the effect of opening position on natural cross ventilation of isolated building was investigated. The airflow pattern and ventilation rate under different opening configurations were analyzed. Eight different opening configurations were considered, including aligned and unaligned openings, as well as vertical-opening design. Computational fluid dynamics (CFD) simulation with 3D steady-state RANS equation Shear Stress Transport (SST) k-ω turbulence model was used. The parameters of streamwise dimensionless wind speed ratio (U/Uref), pressure coefficient (Cp) and dimensionless flow rate (DFR) were analyzed in this study. The results show that the aligned opening configuration Top-Top has the highest DFR at 0.60. This result is similar to that obtained from the literature. In addition, the design of vertical openings can improve the DFR of the building. The DFR of the building is mainly affected by the position of the opening on the windward side. This concludes that the opening positions exert an imperative role in affecting the internal airflow pattern, air recirculation and DFR of a naturally cross ventilated building.

Item Type:	Conference or Workshop Item (Lecture)
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Natural cross ventilation; Opening position; CFD; Vertical opening
Subjects:	T Technology > TJ Mechanical engineering and machinery
Faculty/Division:	Faculty of Mechanical and Automotive Engineering Technology
Depositing User:	Mrs Norsaini Abdul Samat
Date Deposited:	28 Nov 2023 07:45
Last Modified:	28 Nov 2023 07:45
URI:	http://umpir.ump.edu.my/id/eprint/39417
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