The invention provides a
visualization device for rock single fracture solute transport under the action of cyclic temperature change, and the device comprises transparent fracture rock masses which comprise an upper transparent fracture rock
mass and a lower transparent fracture rock
mass which are provided with rough fracture surfaces, and the rough fracture surfaces of the upper transparent fracture rock
mass and the lower transparent fracture rock mass are oppositely placed to form a single fracture channel; the circulating temperature changing
assembly is used for simulating a circulating temperature changing phenomenon in a
natural environment; the solute concentration monitoring
assembly is used for injecting a fluorescent
reagent solution into the single-fracture channel, visualizing solute transport in the single-fracture channel based on
laser-induced
fluorescence and monitoring the solute concentration in the single-fracture channel; the fracture
temperature monitoring assembly is used for monitoring the temperature change in the single fracture channel under cyclic temperature change based on a
fiber Bragg
grating sensor; and the
data processing unit is connected with the circulating temperature changing assembly, the solute concentration monitoring assembly and the crack
temperature monitoring assembly. According to the invention, the solute exchange concentration, the flow characteristic and the thermodynamic characteristic in the fracture can be visually monitored at the same time.