CFD simulations guided prevention and mitigation of Airborne Disease Transmission

CFD 模拟指导预防和减轻空气传播疾病传播

• 批准号: 22K10596
• 负责人: BALE RAHUL
• 金额: $ 2.66万
• 依托单位: Institute of Physical and Chemical Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K10596/
• 关键词: Droplet modeling; Indoor ventilation; Airborne Disease; Droplet Dispersion; Epidemiology

The research has successfully incorporated the modeling of indoor spaces, irrespective of size, including critical factors such as ventilation and air-conditioning systems.This has been achieved by extending the IBM framework to impose arbitrary boundary conditions within the domain, overcoming the inherent limitations of the IBM in this respect.Lastly, the research has developed a robust model for droplet-surface interaction, a key factor influencing droplet dispersion and inhalation, vital for studying the effectiveness of preventive measures such as masks and face shields. This model encapsulates the interaction at various mesh sizes and accounts for factors such as droplet size dependency on wall-interaction and molecular forces for aerosols.

该研究成功地将室内空间的建模纳入其中，无论大小，包括通风和空调系统等关键因素。这是通过扩展IBM框架在域内施加任意边界条件来实现的，克服了IBM在这方面的固有局限性。最后，该研究开发了一个强大的液滴-表面相互作用模型，这是影响飞沫扩散和吸入的关键因素，对于研究口罩和面罩等预防措施的有效性至关重要。该模型封装在不同的网格尺寸的相互作用，并考虑因素，如液滴大小依赖于壁的相互作用和气溶胶的分子力。