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- Title
Numerical Simulation of Turbulent Flow Regulation of Adjacent Buildings Space Based on Characteristics of Particulate Matter Diffusion.
- Authors
Xina Ma; Jingyuan Zhao
- Abstract
This paper investigates the regulation of the interior turbulent flow of adjacent buildings in residential groups that influence of suspended particulate matter distribution. Residential space plan design' model using threedimensional numerical simulation method based on Autodesk Simulation CFD software. From the perspective of urban design, a comparable index, the height ratio of adjacent buildings in residential group, was put forward in the present research. The model of the turbulent flow field between the adjacent buildings of residential group in Xi'an, China as an example was established to study the turbulent flow regulation of the Characteristics of suspended particulate matter diffusion. Field text and CFD simulation were performed to obtain a reasonable numerical model, thus the simulation research of different height ratios of adjacent buildings could be realized. The numerical investigation was carried out in residential group with different height ratio of adjacent buildings, i.e., 1:3, 2:3, 1:1, 4:3, 5:3 and 2:1. Considering the turbulent flow characteristics in vertical direction and the pollutant concentration distribution under micro climate, the distribution rules of the concentration of PM2.5, the absolute velocity and the velocity path lines in the turbulent flow field were studied. The results show that regulation of adjacent buildings have various different action mechanism and different degree of influence on the concentration of PM2.5, absolute velocity distribution and velocity path lines, which could provide a theoretical guide for the quantitative design of urban planning.
- Subjects
TURBULENT flow; PARTICULATE matter; COMPUTER simulation; COMPUTATIONAL fluid dynamics; ABSOLUTE velocity
- Publication
Ekoloji Dergisi, 2018, Issue 106, p803
- ISSN
1300-1361
- Publication type
Article