TY - GEN
T1 - Numerical simulation of indoor human sneezing
AU - Janajreh, Isam
AU - Sajjad, Muhammad
AU - Islam, M. D.
AU - Janajreh, Lina
N1 - Publisher Copyright:
Copyright © 2021 by ASME.
PY - 2021
Y1 - 2021
N2 - Transient numerical simulations have been carried out to mimic and analyse the transmission of various species resulting from human sneezing. The extent of the spread of sneezed air and associated droplets is also investigated based on various parameters. A 2D geometry of the human face is considered that captures the true topology and the outlet characteristics of the exhaled air mixture. Numerous parameters are required to be considered to capture the out-coming mixture trajectory and to track its concentration evolution as it enters and entrains with the surrounding air. These parameters include the velocity of the exhaled air mixture, the extent of mouth opening, the distribution of the mixture fraction, and its mist content. A multi-species Eulerian flow with discrete phase Lagrangian particles is considered. The results include the spatial and temporal distributions of the species and their velocity contour plots. Specifically, the concentration of the exhaled species is captured both spatially and temporally at several hypothetical stations within the computational domain, and away from the source to substantiate/refute the current recommended social distance parameter.
AB - Transient numerical simulations have been carried out to mimic and analyse the transmission of various species resulting from human sneezing. The extent of the spread of sneezed air and associated droplets is also investigated based on various parameters. A 2D geometry of the human face is considered that captures the true topology and the outlet characteristics of the exhaled air mixture. Numerous parameters are required to be considered to capture the out-coming mixture trajectory and to track its concentration evolution as it enters and entrains with the surrounding air. These parameters include the velocity of the exhaled air mixture, the extent of mouth opening, the distribution of the mixture fraction, and its mist content. A multi-species Eulerian flow with discrete phase Lagrangian particles is considered. The results include the spatial and temporal distributions of the species and their velocity contour plots. Specifically, the concentration of the exhaled species is captured both spatially and temporally at several hypothetical stations within the computational domain, and away from the source to substantiate/refute the current recommended social distance parameter.
KW - Airborne diseases
KW - Computational fluid dynamics
KW - Human sneezing
KW - Multi-species flow
UR - http://www.scopus.com/inward/record.url?scp=85112033654&partnerID=8YFLogxK
U2 - 10.1115/HT2021-64043
DO - 10.1115/HT2021-64043
M3 - Conference contribution
AN - SCOPUS:85112033654
T3 - Proceedings of the ASME 2021 Heat Transfer Summer Conference, HT 2021
BT - Proceedings of the ASME 2021 Heat Transfer Summer Conference, HT 2021
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2021 Heat Transfer Summer Conference, HT 2021
Y2 - 16 June 2021 through 18 June 2021
ER -