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Air Flow Simulation Used by 3DEXPERIENCE Lab OPEN COVID-19 Community to Reduce Virus Propagation Risk in French Hospital

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Airflow simulation was used for a collaborative project to reduce the risk of virus propagation inside the St. Francis Hospital in Marange-Silvange in north-eastern France – the country’s second-largest region impacted by COVID-19.  The project, part of Dassault Systèmes’ 3DEXPERIENCE Lab OPEN COVID-19 online community, is the latest one to leverage collective intelligence on the 3DEXPERIENCE platform to quickly solve critical issues during the COVID-19 pandemic.

The St. Francis hospital needed to convert a floor into an area to accommodate COVID-19 patients and wanted to reduce the risk of virus propagation inside.  Based on a floor plan in 2D, 3D modelling made it possible to reassemble the partitions and the walls of the area concerned to quickly provide an idea of the hospital’s current layout.  Dassault Systèmes’ team of scientists and analysts then used SIMULIA computational fluid dynamics simulation applications to simulate different airflow fields within the building, enabling hospital directors to understand how the corridors were important vectors of propagation and optimize the interior layout.

The team made assumptions about patient behaviour, the impacts of a cough, and the floor’s ventilation and air conditioning systems, including air leaks in the windows and doors.  They studied different options by simulating reduced ventilation as well as the strategic opening of windows, to understand the impact of fresh air on airflow and the concentration of virus particles.  Throughout the project and using the 3DEXPERIENCE platform, engineers provided support and mentoring, and the medical community provided feedback.  Hospital technicians are testing with sensor equipment from local industrial companies to validate the different simulations.

SIMULIA, widely used in the aerospace and automotive industries, has already played a key role in the 3DEXPERIENCE Lab OPEN COVID-19 community by supporting the design of personal protective equipment.

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