Air pollution is one of the main factors that affect the air quality in aircraft cabins, and the use of different air supply modes could influence the distribution of air pollutants in cabins. Based on the traditional ceiling air supply mode used on the B737NG, this study investigated another...
Numerical simulation of air pollution dispersion inside tunnels is a suitable method for studying air pollutants' spatial distribution and for evaluating the tunnel's ventilation efficiency. In the present work, Fluent 6.2, a computational fluid dynamic software, has been used for full-scale numerical...
THE NUMERICAL SIMULATION OF AN AIR-CONDITIONING OFFICE Airflow distribution is the technique of controlling and arranging the air flow in the air-conditioning area. The quality of it takes an important part in the air-conditioning effect. The parameters of supply air have a direct effect on .....
In this paper,a Simple Air Quality Numerical Model System(short for SAQMS)was set up.The system is composed of Mesoscale Data Forecasting Model(MM5),Pielke Mid-β Scale Meteorological Model,Euler Air Advection-Diffusion Model and Erisman Dry Sink Model.Sulfur dioxide concentration in Shenyang was...
摘要: Evaluation study of numerical schemes for an air quality simulation model in complex terrain Okamoto Shin'ichi , Hara Keitaro , Takei Atsushi , Masuda Fumio , Horiuchi Kenji Journal of Tokyo University of Information Sciences 2(3), 203-205, 1999-03...
The air quality of a given subway platform will depend on a complex interplay of factors such as the ventilation system, train speed and frequency, wheel materials and braking mechanisms, and station depth and design (Querol et al., 2012 and references therein). Air movements on the platform ...
Based on the statistical analysis of global reanalysis data and WRF mesoscale simulation,the characteristics and effect of synoptic scale air stagnation and meteorological condition on air pollution diffusion during two severe air pollution episodes in December 2013 and February 2014 in BeijingTianjin-Hebei...
Air quality prediction is a hot topic in the environmental field, and the common prediction methods are three main categories: numerical simulation, statistical methods, and machine learning. Earlier studies on air quality prediction mostly used numerical simulation. Using mathematical knowledge, it build...
1. Definition of inherent uncertainty in air quality models; 2. 2. Determination of inherent uncertainty; 3. 3. Role of inherent uncertainty in model evaluation. The concepts introduced here are illustrated through a numerical simulation with Gifford's fluctuating plume model. 关键词: Inherent ...
Models-3/CMAQ ( Community Multiscale Air Quality ) model SF6 ( Numerical simulation of SF6 tracer dispersion with Models-3/CMAQ ( Community Multiscale Air Quality ) model ) 喜欢 0 阅读量: 45 作者:이상미,윤순창 年份: 1999 ...