numerical simulation of laminar flow of a non-newtonian bentonite solution in a horizontal pipe

The present study constitutes a notable contribution to enhancing our understanding of the behavior exhibited by non-newtonian fluids. the purpose of the study involves conducting numerical simulations that elucidate the laminar flow dynamics within a horizontal pipe. the investigated flowing medium consists of bentonite suspensions with varying concentrations. the rheological behavior of the fluid is accurately described using the herschel-bulkley model, a pseudo-plastic representation. the results obtained through this research have helped to meticulously analyze the influence of fluctuations in the rheological index n on the following flow key parameters: pressure drop, velocity, and coefficient of friction within the pipe. this analysis covers a range of generalized reynolds numbers, all the values of which correspond to the laminar flow regime. the meticulous study of the flow parameters reveals a compelling alignment between the simulation results and the experimental measurements, which underscores the validity of the study’s findings.