کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10370737 | 876491 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An iterative Langevin solution for contaminant dispersion simulation using the Gram-Charlier PDF
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزار
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An iterative Langevin solution for contaminant dispersion simulation using the Gram-Charlier PDF An iterative Langevin solution for contaminant dispersion simulation using the Gram-Charlier PDF](/preview/png/10370737.png)
چکیده انگلیسی
An alternative numerical method to solve the three-dimensional stochastic Langevin equation applied to the air pollution dispersion is proposed and tested. We obtain a first-order differential equation whose solution is known and determined by an integrating factor. A Langevin model for inhomogeneous turbulence is obtained, considering the Gram-Charlier Probability Density Function (PDF) of turbulent velocity. The calculus process is based on an iterative scheme through the Picard Iterative Method. Numerical simulations and comparisons with measured data from two different tracer experiments are realized, showing a good agreement between predicted and observed values. Furthermore, the results obtained with the new approach are compared with the ones obtained by three different models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Modelling & Software - Volume 20, Issue 3, March 2005, Pages 285-289
Journal: Environmental Modelling & Software - Volume 20, Issue 3, March 2005, Pages 285-289
نویسندگان
Jonas C. Carvalho, Ãzio R. Nichimura, Marco Túllio M.B. de Vilhena, Davidson M. Moreira, Gervásio A. Degrazia,