کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6756833 | 1431087 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An improved SST kâÏ model for pollutant dispersion simulations within an isothermal boundary layer
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An improved SST kâÏ model for pollutant dispersion simulations within an isothermal boundary layer An improved SST kâÏ model for pollutant dispersion simulations within an isothermal boundary layer](/preview/png/6756833.png)
چکیده انگلیسی
Here, an improved formulation of Menter's SST kâÏ turbulence model, particularly for the wind flow and pollutant dispersion simulations, is applied. The modifications have been added in a systematic manner which include the addition of damping functions in the closure equations, the inclusion of the turbulent cross-diffusion term in the omega equation, and the re-establishment of model constants and parameter profiles. Considerable improvement in the correlation between the prediction and the experimental data up to a value of 0.78 with matching wind and turbulent kinetic energy profiles was obtained by the proposed model. Significant reduction of more than 80% in NSME and a satisfactory FAC2 value of 0.54 are also achieved with the improved model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Wind Engineering and Industrial Aerodynamics - Volume 179, August 2018, Pages 369-384
Journal: Journal of Wind Engineering and Industrial Aerodynamics - Volume 179, August 2018, Pages 369-384
نویسندگان
K. An, J.C.H. Fung,