Document Type : Research Paper

Authors

• Abdel Hakim Kherief Nacereddine ¹
• Omar Kholai ¹
• Mourad Chekired ²
• Mahfoud Kadja ²
• Ton Hoang Mai ³

¹ Laboratoire Ingénierie des Transports et Environnement (LITE), Université Constantine 1, Constantine 25000, Algeria

² Laboratoire d'Energetique Appliquee et de Pollution, Faculté des Sciences de la Technologie, Université Frères Mentouri, Algeria

³ Groupe de Recherche en Sciences pour l’Ingénieur, SFR Condorcet FR CNRS 3417, Université de Reims Champagne-Ardenne, France

Abstract

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.

Keywords

• non-Newtonian fluid
• Bentonite
• numerical simulation
• horizontal pipe
• laminar flow

Main Subjects

• Fluids