id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-283377-uifevl1o	Ye, Jin	Using air curtains to reduce short-range infection risk in consulting ward: A numerical investigation	2020-06-26		.txt	text/plain	5532	264	60	For the supply air velocity 3 m/s, strong turbulence was observed behind the patient at supply air angle 20° shown in Figure 4 (f), which enhanced mixing airflow in the consulting ward and increases the doctor's exposure to the patient exhaled pollutants. Thus, most of the patient exhaled pollutants were controlled in a circular range and the mass fraction of tracer gas near the doctor's mouth was lower than that at supply air angle 20°. Compared with the consulting desk with supply air velocity 2 m/s and supply air angle 0°, stable air curtain was observed in front of the doctor shown in Figure 5 (b), preventing the patient exhaled flow from directly flowing to the doctor breath zone. Though the patient exhaled flow first moved vertically towards the ceiling but then moved horizontally towards the doctor's area in a certain height, the pollutant concentration in the head and breath zone of the doctor were kept at a lower level compared to the consulting desk without air curtain in Figure 5(a) .	./cache/cord-283377-uifevl1o.txt	./txt/cord-283377-uifevl1o.txt