首页|CFD modelling and simulation of drill cuttings transport efficiency in annular bends:Effect of particle size polydispersity
CFD modelling and simulation of drill cuttings transport efficiency in annular bends:Effect of particle size polydispersity
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NSTL
This study analyses the impact of particle polydispersity using the Eulerian-Eulerian(EE)and Lagrangiai Eulerian(LE)modelling approaches in the context of wellbore cleaning operations in the drilling industr Spherical particles of sizes 0.5 mm,0.75 mm and 1 mm are considered,whereas a Power Law rheological mod is used for the fluid phase description.The EE approach implemented herein applies the Kinetic Theory<Granular Flow(KTGF)in ANSYS Fluent~R and accounts for the particle size differences by representing them<different phases within the computational domain.With the LE approach,we employ the Dense Discrete Pha Model(DDPM)and capture this difference with the aid of a size distribution model(the Rosin-Rammler mode The findings of our computational experiments show considerable differences in key variables(the pressure dro and particle deposition tendencies)between monodispersed and polydispersed transport scenarios.
NSTL
