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Updated: Jan 11, 2026

Challenges in Rheological Characterization of Highly Concentrated Suspensions — A Case Study for Screen-printing Silver Pastes
Published on: April 10, 2017
Rheology-driven approaches in slurry transportation: Influence of bimodal mixtures, additives, and modelling
1Department of Mechanical and Aerospace Engineering, Indian Institute of Technology Hyderabad, Telangana 502284, India.
Abstract:
Slurry transportation through pipelines is an essential technology supporting mining, mineral processing, power generation, dredging, and related industries. Its performance is governed by the interactions between solid particles, carrier fluids, and operating conditions, which collectively determine rheology, stability, and energy demand. This review synthesises recent developments on the influence of particle size distribution, concentration, and morphology on slurry flow behaviour, as well as the role of chemical and bio-based additives in improving suspension stability, reducing viscosity, and enabling higher solids loading. The discussion extends to advances in rheological modelling and computational approaches, ranging from empirical correlations to computational fluid dynamics (CFD), discrete element modelling, and emerging hybrid frameworks that integrate artificial intelligence and machine learning for improved prediction and control. Case studies and experimental findings highlight the potential of optimised formulations and modelling strategies to enhance flowability, minimise pressure losses, and promote energy-efficient operation. Attention is also given to the limitations of current methods, challenges in scaling laboratory results to field conditions, and the need for standardisation in additive evaluation and model validation. By consolidating these insights, the review provides a comprehensive understanding of slurry pipeline transport and outlines opportunities for developing reliable, sustainable, and adaptable systems suited to future industrial demands.
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