- 期刊
呼吸道傳染疾病於教室內傳播之CFD模擬
CFD Simulation of Respiratory Infectious Disease Transmission in Classrooms
摘要
如何有效降低呼吸道傳染疾病的感染風險一直為重要的課題，尤其是在全球爆發嚴重特殊傳染性肺炎（COVID-19）後，研究並制定有效的防疫策略變得越來越關鍵。對於像學校教室這樣的密閉環境，確保安全適當的通風設置尤為重要，而田口方法作為一種高效率的設計方法，可以幫助我們在系統性地評估不同因素對傳染疾病傳播風險的影響後，迅速找到最佳的設計參數組合，進而提出明確有效的防疫措施。本研究結合田口方法和計算流體力學軟體ANSYS-Fluent，探討不同位置的感染者在教室中咳嗽時，釋放含有新型冠狀病毒飛沫的擴散與運動，並利用CFD模擬來評估不同通風設置對感染源釋放含有COVID-19的飛沫顆粒之影響。綜合分析所有的結果，我們得出在各感染源權重相同時，最佳通風配置為將空調設置於前方、抽風扇設置於後方、門縫設置於右側且抽風扇速度為5m/s。
並列摘要
Research on effectively reducing the risk of respiratory infectious diseases has been a critical focus, particularly in the wake of the global outbreak of COVID-19. Developing effective strategies for disease prevention has become increasingly vital. Ensuring safe and appropriate ventilation is essential in enclosed environments such as school classrooms. The Taguchi method aids in identifying optimal parameter combinations, evaluating various factors' impact on disease transmission risk, and formulating effective preventive measures. This study combines the Taguchi method with CFD software ANSYS-Fluent to investigate the dispersion of COVID-19 droplets released by infected individuals in different classroom locations during coughing. Using CFD simulations, it assesses the impact of various ventilation configurations on the release of droplets from infection sources. In summary, when infection source weights are equal, the optimal configuration involves placing the air conditioner in the front, the exhaust fan in the rear, the door gap on the right side, and setting the exhaust fan speed to 5 m/s.