NDLI: CFD dispersion modelling of ultrafine particles in urban street canyon

Please wait, while we are loading the content...

CFD dispersion modelling of ultrafine particles in urban street canyon

Content Provider	Semantic Scholar
Author	Nikolova, Irina Janssen, Stijn Vos, Peter Mishra, Vinit Kumar Berghmans, Patrick
Copyright Year	2011
Abstract	Methodology: The ultrafine particles (UFP) are modelled with the three dimensional computational fluid dynamics (3D CFD) model ENVI-met. The model was extended to account for different transformation processes that could have impact on the size and the number of particles (for example coagulation, deposition, etc).The UFP total number emissions are accounted based on the PARTICULATES project results. In order to validate the results,a measurement campaign was held in a street canyon in Antwerp, Belgium. The study domain contains a small street canyon in combination with a heavily trafficked boulevard perpendicular to it. The concentration of UFP in the street was measured at four different locations (one close to the busy boulevard, two opposite to each other in the middle and one at the other end). Results: Two examples are show the complexity and concerns when modeling the UFP dispersion and analyzing the results. The modelled concentration for total number of UFP was compared with measured UFP concentration at four locations in the street. The modelled trend in the UFP concentration well resembles the measured and it is within the uncertainties of the measurements showing an overall a good agreement. The wind direction is found to be of crucial importance for the dispersion of UFP. Besides there is a need of representative meteorological input suitable for modelling the UFP. Emissions are another parameter that alter the concentration of UFP and need to be addressed adequately. In the analysis averaging over long periods (hours) can mask important details and might lead to wrong conclusions. This model simulation and the comparison results can be used to better understand the dispersion of total number UFP concentrations in urban environment.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://meetingorganizer.copernicus.org/EGU2011/EGU2011-10516.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in