Work

Are Drag Models Adequate? A Comprehensive Analysis of Drag Modelling for Regular and Irregular Particles

Year: 2025

Type: article

Abstract: Particles travelling within and interacting with any fluid media are found in both natural phenomena and industrial processes. Through these interactions, the particles experience a drag force, heavily influenced by their morphology, and significantly affecting their dynamics. This study examines the relationship between particle morphology and the drag force exerted on them, using both empirical models and computational simulations. The findings indicate that for regular and irregular particles of diverse morphologies, a combination of existing empirical models can predict the drag force within a 40% error margin. However, these models may fall short of meeting the accuracy demands in certain applications. To address this, the study provides clear guidelines for selecting the most suitable drag model based on particle morphology and flow regime.

Source: Powders

DOI: 10.3390/powders4040029

Authors: Sadaf Maramizonouz, Sadegh Nadimi

Institution: Newcastle University

Language: English

Topic: Particle Dynamics in Fluid Flows

Subfield: Ocean Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,207

Funder: Engineering and Physical Sciences Research Council