najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2026-17-3-317-326najo-1839Research ArticlePHYSICSФИЗИКАMolecular modeling viscosity of hybrid nanofluids with carbon nanotubes and copper nanoparticlesМолекулярное моделирование вязкости гибридных наножидкостей с углеродными нанотрубками и медными наночастицамиhttps://orcid.org/0000-0003-1335-4548РудякВ. Я.RudyakV. Ya.

Valery Ya. Rudyak

Novosibirsk

valery.rudyak@mail.ruhttps://orcid.org/0000-0002-9495-7326КраснолуцкийС. Л.KrasnolutskiiS. L.

Sergey L. Krasnolutskii

Novosibirsk

sergius-l@mail.ruhttps://orcid.org/0000-0003-3347-0781ЛежневЕ. В.LezhnevE. V.

Evgeniy V. Lezhnev

Novosibirsk

lionlev@yandex.ruhttps://orcid.org/0000-0002-6304-8680РафальскаяТ. А.RafalskayaT. A.

Tatiana A. Rafalskaya

Novosibirsk

rafalskaya.ta@yandex.ruNovosibirsk State University of Architecture and Civil EngineeringRussian Federation202618072026173317326Copyright © Rudyak V.Y., Krasnolutskii S.L., Lezhnev E.V., Rafalskaya T.A., 20262026Рудяк В.Я., Краснолуцкий С.Л., Лежнев Е.В., Рафальская Т.А.Rudyak V.Y., Krasnolutskii S.L., Lezhnev E.V., Rafalskaya T.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1839

Molecular dynamics method was used to study the viscosity coefficients of benzene-based hybrid nanofluids with single wall carbon nanotubes and copper nanoparticles. The dependence of the viscosity of these nanofluids on the concentration of carbon nanotubes and nanoparticles, as well as on their morphology was studied. It was shown that viscosity of all the studied nanofluids is significantly higher than that of the base fluid and conventional coarse-dispersed fluids. The viscosity coefficient of nanofluid with carbon nanotubes at a given concentration increases with increasing their length (aspect ratio). At equal concentrations, the viscosity of hybrid nanofluids significantly exceeds the viscosity of nanofluid with nanoparticles or carbon nanotubes and increases with decreasing in nanoparticle size. One of the principal factors responsible for the observed increase in the viscosity of nanofluid is the structuring of the base fluid molecules near the nanoparticles or carbon nanotubes.

Методом молекулярной динамики изучены коэффициенты вязкости гибридных наножидкостей на основе бензола с одностенными углеродными нанотрубками и наночастицами меди. Исследована зависимость вязкости этих наножидкостей от концентрации углеродных нанотрубок и наночастиц, а также от их морфологии. Показано, что вязкость всех исследованных наножидкостей значительно выше, чем у базовой жидкости и обычных крупнодисперсных жидкостей. Коэффициент вязкости наножидкости с углеродными нанотрубками при заданной концентрации увеличивается с увеличением их длины. При одинаковых концентрациях вязкость гибридных наножидкостей значительно превышает вязкость наножидкости с наночастицами или углеродными нанотрубками и увеличивается с уменьшением размера наночастиц. Одним из основных факторов, ответственных за наблюдаемое увеличение вязкости наножидкости, является структурирование молекул базовой жидкости вблизи наночастиц или углеродных нанотрубок.

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The authors declare that there are no conflicts of interest present.