Modelling of aerosol trajectories in a mechanically-ventilated study room using computational fluid dynamics in light of the COVID-19 pandemic
by R.M.P.S. Bandara; W.C.D.K. Fernando; R.A. Attalage
International Journal of Simulation and Process Modelling (IJSPM), Vol. 17, No. 4, 2021

Abstract: Millions of people have been infected globally due to the prevailing COVID-19 pandemic and spread of the disease indoors has become a challenging issue. In this context, the study focused on modelling the trajectories of virus-laden aerosols in a study room by the computational fluid dynamics approach under four mechanically-driven ventilation strategies: cavity flow, displacement flow and two cases of mixing flow. Modelling was conducted by coupling discrete phase model with the continuous phase during simulations. Mixing flow - case 1 is proved to be the safest strategy as the virus-laden aerosols leave the room in a single-pass without exposing the occupants. In displacement flow and mixing flow - case 2 ventilation, aerosols get entrapped in the supply air stream, causing heavy circulation while exposing many occupants. The study opens up new avenues for an extensive analysis on establishing an optimal ventilation solution in order to mitigate the spread of COVID-19 indoors.

Online publication date: Thu, 28-Apr-2022

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Simulation and Process Modelling (IJSPM):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email