“…As a powerful tool of modeling the above phenomena, in recent years, the fractional calculus theory has been perfected gradually by many researchers, and various different types of fractional derivatives were studied, such as Riemann-Liouville derivatives [16,, Hadamardtype derivatives [63][64][65][66][67][68][69][70][71], Katugampola-Caputo derivatives [72], conformable derivatives [73][74][75][76], Caputo-Fabrizio derivatives [77,78], Hilfer derivatives [79][80][81][82], and tempered fractional derivatives [83]. ese works also enlarged and enriched the application of the fractional calculus in impulsive theories [84][85][86][87][88][89], chaotic system [90][91][92][93], and resonance phenomena [94][95][96]. Among them, by using the fixed point theorem of the mixed monotone operator, Zhang et al [9] established the result of uniqueness of the positive solution for the Riemann-Liouville-type turbulent flow in a porous medium:…”