کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
263669 504080 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new empirical model for predicting single-sided, wind-driven natural ventilation in buildings
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
A new empirical model for predicting single-sided, wind-driven natural ventilation in buildings
چکیده انگلیسی

Prediction of single-sided natural ventilation is difficult due to the bi-directional flow at the opening and the complex flow around buildings. A new empirical model was developed that can predict the mean ventilation rate and fluctuating ventilation rate due to the pulsating flow and eddy penetration of single-sided, wind-driven natural ventilation in buildings. The governing equation is based on the non-uniform pressure distribution along the opening height. The new model shows that the ventilation rate and wind velocity are linearly correlated. This investigation studied the eddy penetration effect in the frequency domain based on fast Fourier transform. Large eddy simulation (LES) and experimental data were used to validate the new empirical model. The model has also been used to analyze the influence of the opening geometry and elevation on the ventilation rate.


► We developed a new empirical model for predicting single-sided, wind driven ventilation rate.
► The model was compared and validated by CFD simulations and existing experimental data from the past literature.
► We studied the effect of wind direction, opening size and elevation on ventilation rates based on the model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy and Buildings - Volume 54, November 2012, Pages 386–394
نویسندگان
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