Contribution of N3S numerical simulation in investigating the influence of balcony on traditional building to obtain maximum indoor velocity (Case study of urban living quarter with low wind speed in Cayenne Guyana - France and Semarang - Indonesia)
Citation
International journal on architectural science, v.2, no.3, 2001, pp. 101-112
Abstract
This paper deals with the use of natural ventilation in the living zone of tropical house. It is evident that large openings placed opposite each other, and positioned at the high and low-pressure areas respectively, will provide the maximum air change within the structure. Straight flow secures the speediest air movement and any changes of airflow direction slow the effect.
This paper presented the results of numerical modelling with N3S program on natural indoor airflow patterns within a two-storied building in tropical humid region with low wind speed (the outdoor wind speed <3 ms-1), case study of Cayenne Guyana France and Semarang Indonesia.
Indoor airflow pattern at various points in the living zone located on the second floor of two-dimensional building model are computed and used to derive indoor air velocity coefficient (Cv), pressure difference (P) and homogeneity of indoor airflow (Cves) at slice of 1.00 m in height for activity at sitting position.
The main result of this study is balcony and opening configuration has significant effect in providing maximum velocity for comfort.
(1) Introduction
(2) Approach
(a) Balcony as the wind scoop
(b) Creating "Ventury Effect" and the standard of comfort ventilation
(3) Simulation method and boundary
(a) What is N3S program?
(b) The boundary of experiment
(c) Building model: exterior and interior
(4) Result and discussion
(a) Analysis of air pressure difference, average velocity coefficient and coefficient of airflow homogeneity for all models
(i) Analysis of air pressure difference
(ii) The analysis of Cv and Cves
(b) Effect of balcony's existence
(c) Effect of opening dimension
(d) Effect of window with various blind angles
(e) Pivoted window position
(i) Pivoted window in upward position
(ii) Pivoted window in downward position
(f) The role of louver
(g) How is the effect of combined window and louver configuration?
(5) Conclusion
(6) Acknowledgement
(7) References
Description
Notes: Ventilation
Subject
Type
Article
Format
Date
2001
Language
en