Abstract
When new design and technological solutions are developed for equipment intended for the supply and transportation of non-Newtonian liquids through pipelines, research and design organizations face the problem of accurate understanding and behavior of such media as concrete and mortar mixtures. Currently, dozens of models of various complex fluid systems are known, most of which, however, are only empirical. The reason of this situation is the lack of a sufficiently generalized theory that would allow calculating the characteristics of the mechanical behavior of the flow of various media based on their structure. The specialist literature presents numerous purely empirical and semi-empirical rheological models of limited purpose. In most works, the well-proven and justified rheological Shvedov–Bingham, Bulkley-Herschel, Ostwald-de Waele, Briand, Shulman, and Casson models are not used to a sufficient extent due to the narrow technological specialization of the studied non-Newtonian fluids. Classical rheological models have a strong potential for improvement and rational modification to generalize rheological models of the flow for non-Newtonian fluids.
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