Modelling Heat and Mass Transfer in a Relief Pipeline with Constant and Varying Diameters

Ravshanov, Sh.A., Boborakhimova, M.I., Chulliev, Sh.I., Равшанов, Ш.А., Боборахимова, М.И., Чуллиев, Ш.И.

Ҳисоблаш ва амалий математика муаммолари · 2026-yil

Annotatsiya

This work presents a comprehensive numerical and analytical study of hydrodynamic and thermal processes in closed pipelines of variable diameter, taking into account terrain relief and external thermal influences. The novelty lies in an improved quasi-onedimensional model that assesses the impact of geometric parameters (diameter, inclination angle, internal roughness) and thermophysical characteristics (material thermal conductivity, ambient temperature) on the pressure and temperature distribution along the pipeline. The model was validated against SST-turbulence-model simulations and Darcy–Weisbach calculations, with a maximum deviation below 2%. Hydraulic losses were found to depend mainly on pipe diameter and flow velocity, whereas thermal losses depend on the material’s thermal conductivity and the pipeline orientation. The proposed approach provides a reliable and computationally efficient basis for predicting the energy characteristics of fluid-transport systems and optimizing thermal networks.

Maqola ma’lumotlari
MualliflarRavshanov, Sh.A., Boborakhimova, M.I., Chulliev, Sh.I., Равшанов, Ш.А., Боборахимова, М.И., Чуллиев, Ш.И.
JurnalҲисоблаш ва амалий математика муаммолари
NashriyotТошкент ахборот технологиялари университети қошидаги, Ахборот-коммуникация технологиялари илмий-инновацион, маркази
ISSN2181-8460, 2181-046X
Nashr sanasi2026-07-02
Son3
Betlar90-103
TilIngliz
DOI10.71310/pcam.3_73.2026.07
Indeksga qo‘shilgan2026-08-27

DOI: 10.71310/pcam.3_73.2026.07 · Maqolaning asl sahifasi

Kalit so‘zlar

fluid flow, heat transfer, pipe flow, поток жидкости, теплопередача, течение в трубах

Iqtibos keltirish

APARavshanov, Sh.A., Boborakhimova, M.I., Chulliev, Sh.I., Равшанов, Ш.А., Боборахимова, М.И., & Чуллиев, Ш.И. (2026). Modelling Heat and Mass Transfer in a Relief Pipeline with Constant and Varying Diameters. Ҳисоблаш ва амалий математика муаммолари, (3), 90-103. https://doi.org/10.71310/pcam.3_73.2026.07
GOST (OAK)Ravshanov, Sh.A. va b. Modelling Heat and Mass Transfer in a Relief Pipeline with Constant and Varying Diameters // Ҳисоблаш ва амалий математика муаммолари. – 2026. – № 3. – P. 90-103. – DOI: 10.71310/pcam.3_73.2026.07.
MLARavshanov, Sh.A., Boborakhimova, M.I., Chulliev, Sh.I., Равшанов, Ш.А., Боборахимова, М.И., and Чуллиев, Ш.И. “Modelling Heat and Mass Transfer in a Relief Pipeline with Constant and Varying Diameters.” Ҳисоблаш ва амалий математика муаммолари, (3), 90-103, 2026. https://doi.org/10.71310/pcam.3_73.2026.07
ChicagoRavshanov, Sh.A., Boborakhimova, M.I., Chulliev, Sh.I., Равшанов, Ш.А., Боборахимова, М.И., and Чуллиев, Ш.И. “Modelling Heat and Mass Transfer in a Relief Pipeline with Constant and Varying Diameters.” Ҳисоблаш ва амалий математика муаммолари, (3), 90-103 (2026). https://doi.org/10.71310/pcam.3_73.2026.07
HarvardRavshanov, Sh.A., Boborakhimova, M.I., Chulliev, Sh.I., Равшанов, Ш.А., Боборахимова, М.И., and Чуллиев, Ш.И (2026) ‘Modelling Heat and Mass Transfer in a Relief Pipeline with Constant and Varying Diameters’, Ҳисоблаш ва амалий математика муаммолари, (3), 90-103. https://doi.org/10.71310/pcam.3_73.2026.07
BibTeX
@article{ravshanovsha2026,
  title = {Modelling Heat and Mass Transfer in a Relief Pipeline with Constant and Varying Diameters},
  author = {Ravshanov, Sh.A. and Boborakhimova, M.I. and Chulliev, Sh.I. and Равшанов, Ш.А. and Боборахимова, М.И. and Чуллиев, Ш.И.},
  journal = {Ҳисоблаш ва амалий математика муаммолари},
  year = {2026},
  number = {3},
  pages = {90-103},
  doi = {10.71310/pcam.3_73.2026.07},
  url = {https://doi.org/10.71310/pcam.3_73.2026.07}
}

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