کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8863911 1620293 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inverse identification of unknown finite-duration air pollutant release from a point source in urban environment
ترجمه فارسی عنوان
شناسایی معکوس انتشار ناخالص هوا نا محدود از یک منبع نقطه در محیط شهری
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
چکیده انگلیسی
In this work, we present an inverse computational method for the identification of the location, start time, duration and quantity of emitted substance of an unknown air pollution source of finite time duration in an urban environment. We considered a problem of transient pollutant dispersion under stationary meteorological fields, which is a reasonable assumption for the assimilation of available concentration measurements within 1 h from the start of an incident. We optimized the calculation of the source-receptor function by developing a method which requires integrating as many backward adjoint equations as the available measurement stations. This resulted in high numerical efficiency of the method. The source parameters are computed by maximizing the correlation function of the simulated and observed concentrations. The method has been integrated into the CFD code ADREA-HF and it has been tested successfully by performing a series of source inversion runs using the data of 200 individual realizations of puff releases, previously generated in a wind tunnel experiment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Environment - Volume 181, May 2018, Pages 82-96
نویسندگان
, , , , , ,