Liquid-curtain-based strategy to restrain plume during flushing

Su-Chen Wu; Meng-Yue Guo; Ji-Xiang Wang; Shuhuai Yao; Jun Chen; Yun-Yun Li

doi:10.1063/5.0033836

Liquid-curtain-based strategy to restrain plume during flushing

Phys Fluids (1994). 2020 Nov 1;32(11):111707. doi: 10.1063/5.0033836.

Authors

Su-Chen Wu, Meng-Yue Guo¹, Ji-Xiang Wang², Shuhuai Yao³, Jun Chen¹, Yun-Yun Li¹

Affiliations

¹ Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, People's Republic of China.
² College of Electrical, Energy and Power Engineering, Yangzhou University, Yangzhou 225009, People's Republic of China.
³ Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, People's Republic of China.

Abstract

How to prevent the flushing-induced plume without changing people's daily habits? Enlightened by thoughts of redesigning the restroom, this article provides a redesigned toilet using liquid-curtain-based strategy and verifies its advantages from the computational fluid dynamics. Two favorable effects are spotted: (1) the liquid curtain can suppress the upward virus particles (only 1% viruses can be lifted out of the toilet) and (2) the flow distribution caused by the liquid curtain can deliver virus particles into the sewage efficiently.