Numerical simulation of pollutant dispersion in urban roadway tunnels

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Numerical Simulation of Pollutant Dispersion from Point Source in an Urban Area

In this paper, pollutant dispersion from point source was investigated numerically in an urban area. Numerical simulations were carried out using Computational Fluid Dynamics (CFD) models. The CFD models used for the simulation were based on the steadystate Reynolds-Average Navier-Stoke equations (RANS) with κ-ε turbulence models. A gas pollutant was emitted from a point source within the wake ...

متن کامل

Numerical analysis of a pollutant dispersion in subsurface soil

A hydraulic scale model was used in a laboratory experiment for the purpose of understanding the characteristics of a pollutant dispersion in subsurface soil. The experimental site was an area near a radioactive waste repository in the Republic of Korea. The hydraulic scale model was designed and manufactured in geometric similarity to the actual site. The tracer 99mTc which has a short half-li...

متن کامل

Numerical and Experimental Analysis of Car Exhaust Pollutant Dispersion

The aim of the paper is to compare results obtained by experiments and numerical analysis for vehicle exhaust pollutant emissions and concentrations in urban area. Special attention was plaid to problems of vehicle pollutant emission and dispersion caused by cold start. For description of emission sources a multi-point model was applying. In the model every vehicle is treated as a single moveab...

متن کامل

Numerical Investigation on Effects of Deep Excavations’ Position on Existing Metro Tunnels in Urban Areas

Nowadays deep excavations are needed for construction of foundation of high rise buildings, providing space for parking and etc. In some cases deep excavations may be constructed in the vicinity of the subway tunnels and causes unpredicted extra displacements and internal forces in tunnel lining of tunnels which were not designed for them and consequently affect serviceability of tunnel. Theref...

متن کامل

Simulation of Dispersion of Pollutant by Eddy Field

This research studies the behavior of the dispersion of a pollutant cloud, through the simulation of an eddy field velocity. To do so, a mathematical model was developed, with base in the Monte Carlo simulations, in order to analyze all statistic aspects, present in this process. A computational program was developed, so that it can be possible to establish the behavior of the cloud size, in a ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: The Journal of Computational Multiphase Flows

سال: 2017

ISSN: 1757-482X,1757-4838

DOI: 10.1177/1757482x17694041