Fluctuating inlet flow conditions for use in urban air quality CFD studies

S. M. Kwa, S. M. Salim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Fluctuating Wind Boundary Condition (FWBC) is compared against a Steady Wind Boundary Condition (SWBC) to determine their suitability in the investigation of air flow and pollutant dispersion processes in urban street canyons. Numerical simulations are performed using Large Eddy Simulation (LES) and it is observed that a FWBC inlet profile produces different outcomes when compared to wind tunnel (WT) measurements and previous published data using SWBC. The FWBC generated in the present study produces more realistic results representing real urban conditions as meteorological data show fluctuations in wind speed and direction at all times.

Original languageEnglish
Title of host publicationLecture Notes in Engineering and Computer Science
PublisherNewswood Limited
Number of pages6
ISBN (Print)9789881925350
Publication statusPublished - 2014
EventWorld Congress on Engineering - London, United Kingdom
Duration: 2 Jul 20144 Jul 2014


ConferenceWorld Congress on Engineering
Abbreviated titleWCE 2014
Country/TerritoryUnited Kingdom


  • Fluctuating Wind Boundary Condition (FWBC)
  • Index Terms-Computational Fluid Dynamics (CFD)
  • Large Eddy Simulation (LES)
  • Pollutant dispersion
  • Urban street canyon

ASJC Scopus subject areas

  • Computer Science (miscellaneous)


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