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Identification of source location in a single-sided building with natural ventilation: Case of interunit pollutant dispersion by Yuwei Dai; Fuyao Zhang; Haidong Wang is a Engineering article available to read on EtoBox.

What is Identification of source location in a single-sided building with natural ventilation: Case of interunit pollutant dispersion about?

A sudden outbreak of COVID-19 occurred in December 2019 and its rapid spread over the last two years caused a global pandemic. A special airborne transmission via aerosols called interunit dispersion is risky in a high-density urban environment, which needs more attention. In order to identify the source location of pollutants or viruses under the interunit transmission condition with natural ventilation, this study adopted the inverse Computational Fluid Dynamics (CFD) simulation with the adjoint probability method. The detailed process of the inverse modeling was presented. Also, the possible interunit transmission routes of the pollutants or viruses were analyzed. A three-story building model with single-sided openings was built. Six different combinations of fixed sensor locations were tested, and it was determined that setting sensors in the four corner regions of the building was the optimist strategy. A total of 25 cases with five different wind directions (0 • , 45 • , 90 • , 135 • , and 180 • ) were tested to verify the accuracy of the source location with inverse modeling. The results showed that 67%-78% of the rooms in the building can be identified with a limited number

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Author

Yuwei Dai; Fuyao Zhang; Haidong Wang

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)