CFD modelling and simulation of drill cuttings transport efficiency in annular bends: Effect of particle size polydispersity


This study analyses the impact of particle polydispersity using the Eulerian-Eulerian (EE) and Lagrangian-Eulerian (LE) modelling approaches in the context of wellbore cleaning operations in the drilling industry. Spherical particles of sizes 0.5 mm, 0.75 mm and 1 mm are considered, whereas a Power Law rheological model is used for the fluid phase description. The EE approach implemented herein applies the Kinetic Theory of Granular Flow (KTGF) in ANSYS Fluent® and accounts for the particle size differences by representing them as different phases within the computational domain. With the LE approach, we employ the Dense Discrete Phase Model (DDPM) and capture this difference with the aid of a size distribution model (the Rosin-Rammler model). The findings of our computational experiments show considerable differences in key variables (the pressure drop, and particle deposition tendencies) between monodispersed and polydispersed transport scenarios.

Publication DOI:
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
College of Engineering & Physical Sciences
Additional Information: © 2021, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Uncontrolled Keywords: Cuttings transport,Discrete phase model,Polydispersity,Rosin-Rammler,Fuel Technology,Geotechnical Engineering and Engineering Geology
Publication ISSN: 0920-4105
Full Text Link:
Related URLs: https://www.sci ... 4157?via%3Dihub (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2022-01
Published Online Date: 2021-11-06
Accepted Date: 2021-11-01
Authors: Epelle, Emmanuel I.
Obande, Winifred
Okolie, Jude A.
Wilberforce, Tabbi (ORCID Profile 0000-0003-1250-1745)
Gerogiorgis, Dimitrios I.



Version: Accepted Version

Access Restriction: Restricted to Repository staff only

License: Creative Commons Attribution Non-commercial No Derivatives

Export / Share Citation


Additional statistics for this record