Experimental and Numerical Studies on the Vertical Flow of Variable Density Fluid in Different Directions

Table 1

Test schemes.

Test group number	Direction of water injection	Test no.	Flux of water injection (mL/min)	Sampling interval (min)	Duration of tests (min)
Group 1	The direction of gravity (from up to down)	1	2	30	900
		2	5	15	400
		3	8	10	240
		4	10	10	200
		5	20	5	100
		6	40	2	50
Group 2	The direction of reverse gravity (from down to up)	7	2	30	900
		8	5	15	400
		9	8	10	240
		10	10	10	200
		11	20	5	100
		12	40	2	50