Uzak Zhapbasbayev

Polymer-Induced Turbulent Drag Reduction: Mechanisms, Governing Parameters, Numerical Modeling, and Emerging Machine Learning Approaches—A Comprehensive Review

Uzak Zhapbasbayev, Timur Bekibayev, Gaukhar Ramazanova

This comprehensive review systematically examines the fundamental and contemporary concepts underlying the Toms effect—the phenomenon of turbulent drag reduction (DR) induced by the addition of minute concentrations of high-molecular-weight linear polymers to turbulent flows. The evolution of scientific understanding is traced from …

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Rheological Transformation of Waxy Crude Oil During Transition to a Viscoplastic State

Uzak Zhapbasbayev, Timur Bekibayev, Gaukhar Ramazanova, Olzhas Kenzhaliev

This study investigates non-isothermal laminar flow of waxy crude oil in a pipe. Due to heat exchange with the surroundings, the flow cools along the pipe length, resulting in a gradual transformation of the oil rheology from Newtonian to viscoplastic behavior. The …

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DIGITAL MODELS FOR MANAGING URBAN HEATING NETWORKS

Uzak Zhapbasbayev, Timur BEKIBAYEV, Gaukhar Ramazanova

DIGITAL MODELS FOR MANAGING URBAN HEATING NETWORKS

Uzak Zhapbasbayev, Timur BEKIBAYEV, Gaukhar Ramazanova

Predictive Diagnostics and Detection of Failures in Urban Heating Systems using Machine Learning

Gulnar Balakayeva, Uzak Zhapbasbayev, Dauren Darkenbayev

This paper presents a comprehensive solution for predictive maintenance of urban heating systems based on modern machine learning algorithms. The primary objective of the study is the early detection of potential equipment failures, thereby increasing network reliability and reducing unplanned downtime. To …

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Modeling of freeze-drying of mare's milk taking into account cracks

Uzak Zhapbasbayev, Nurbibi Imanbayeva, Ayaulym Rakhmatulina

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Peer Review Report For: Digital twinning of temperature fields for modular multilayer multiphase pipeline structures [version 1; peer review: 2 approved with reservations, 1 not approved]

Karlygash Soltanbekova, Uzak Zhapbasbayev

Modeling of freeze-drying of mare's milk taking into account cracks

Nurbibi Imanbayeva, Uzak Zhapbasbayev, Ayaulym Rakhmatulina

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