行政院國家科學委員會補助專題研究計畫成果報告:溫室通風動態模擬（一）
Date Issued
2001
Date
2001
Author(s)
DOI
892313B002249
Abstract
A systematic analysis of the ventilation
process in naturally ventilated low-rise
buildings was performed with the use of
computational fluid dynamics (CFD) to solve
the Navier-Stokes equations together with the
large eddy simulation (LES) turbulence model.
The validity of the model was verified by
comparing the simulated numerical results with
the published experimental data and the
conventional turbulence model such as the k-ε
model. A good agreement between the
numerical data and the experimental
measurements was found if a LES turbulence
model is applied in CFD simulation, especially
for the flow fields located in the corners and top
of the buildings. Then, the influence of design
characteristics, such as the opening angles and
locations on the ventilation efficiency was
examined in the case of a typical Venlo
greenhouse, which is a representative example
of naturally ventilated low-rise buildings. It is
demonstrated that CFD is a powerful tool for
developing improved designs with respect to
ventilation efficiency.
Subjects
Computational fluid dynamics
Low-rise buildings
Ventilation characteristics
Natural ventilation rate
Large eddy simulation
Publisher
臺北市：國立臺灣大學生物環境系統工程學系暨研究所
Type
report
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