The features of the modeling the nanofluid flows

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: International Scientific Conference on Mechanics: 8th Polyakhov's Reading

Год издания: 2018

Идентификатор DOI: 10.1063/1.5034674

Аннотация: The features of the nanofluid flows modeling are analyzed. In the first part the thermophysical properties (viscosity and thermal conductivity) of nanofluids are discussed in detailed. It was shown that the transport coefficients of nanofluids depend not only on the volume concentration of the particles but also on their size and material. The viscosity increases with decreasing the particle size while the thermal conductivity increases with increasing the particle size. The heat transfer of nanofluid in cylindrical channel and laminar-turbulent transition in some flows are considered. The heat transfer coefficient is determined by the flow mode (laminar or turbulent) of the nanofluid. However it was shown that adding nanoparticles to the coolant significantly influences the heat transfer coefficient. The laminar-turbulent transition begins in all cases earlier (at smaller Reynolds numbers) than for base fluid. In conclusion the possibility of the use of traditional similarity criteria are discussed. © 2018 Author(s).

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Издание

Журнал: AIP Conference Proceedings

Выпуск журнала: Vol. 1959

Номера страниц: 60013

ISSN журнала: 0094243X

Издатель: American Institute of Physics Inc.

Авторы

  • Rudyak V. (Novosibirsk State University of Architecture and Civil Engineering, 113 Leningradskaya str., Novosibirsk, Russian Federation, Siberian Federal University, 71 Svobodniy av., Krasnoyarsk, Russian Federation)
  • Minakov A. (Siberian Federal University, 71 Svobodniy av., Krasnoyarsk, Russian Federation)

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