CFD Analysis of Turbulent Flow of Power-Law Fluid in a Partially Blocked Eccentric Annulus

This study focuses on analyzing the turbulent flow of drilling fluid in inclined wells using Computational Fluid Dynamics (CFD) technique. The analysis is performed considering an annulus with a fixed eccentricity 90% and varying properties, diameter ratio, bed thickness to examine velocity profile, pressure loss, overall wall average shear stresses. CFD simulation results are compared existing data for validation. loss predicted agrees data. After verification, predictions used establish correlation that can be applied compute stress. established mostly displays discrepancy up 10% when optimize hole cleaning manage downhole pressure.