التفاصيل البيبلوغرافية
| العنوان: |
Effects of roof configuration on natural ventilation for an isolated building |
| المؤلفون: |
Moey, Lip Kean, Kong, Man Fai, Tai, Vin Cent, Go, Tze Fong, Adam, Nor Mariah |
| المساهمون: |
Swinburne University of Technology |
| المصدر: |
Journal of Mechanical Engineering and Sciences, Vol. 15, no. 3 (Sep 2021), pp. 8379-8389 |
| بيانات النشر: |
Universiti Malaysia Pahang Publishing |
| سنة النشر: |
2021 |
| مصطلحات موضوعية: |
archi, envir |
| الوصف: |
Numerical analyses based on CFD steady RANS were conducted to investigate the effects of roof configuration on wind-induced natural ventilation for an isolated roofed building. Gable roof and saltbox roof building models were tested with 15 degrees, 25 degrees, 35 degrees and 45 degrees roof pitch in present study. The flow field information and flow characteristics were obtained from the contours and plots generated by CFD. In accordance to the increment of roof pitch, the turbulence kinetic energy and mean velocity ratio show vigorous response. The flow separated at the windward corner do not reattach onto the roof, thus induced higher velocity gradient and form a large vortex at the roof ridge. The vortices behind then building caused by the flow separation at the roof ridge extend along the mixing layer and spread up to the roof. The pressure differences mainly rely on the roof shapes. Greater pressure differences between the upstream, interior and downstream was observed in saltbox roof cases. This is due to the extended roof height which boosted the impinging effect caused by the incoming wind. Generally, the saltbox roof configuration exhibit better performance than gable roof in terms of the measured parameters. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
http://hdl.handle.net/1959.3/463070 |
| الاتاحة: |
http://hdl.handle.net/1959.3/463070 |
| Rights: |
undefined |
| رقم الانضمام: |
edsbas.24EF5EB |
| قاعدة البيانات: |
BASE |