Молекулярно-динамическое изучение вязкости наножидкостей с углеродными трубками
https://doi.org/10.17586/2220-8054-2024-15-1-37-45
Аннотация
Целью данной работы является молекулярно-динамическое моделирование вязкости наножидкостей на основе бензола с углеродными нанотрубками и наночастицами из углерода и меди. Диаметр и длина нанотрубок соответственно равны 1,1 нм и 1.1, 3.5, 7.2, 14.6 нм. Размер сферических наночастиц составлял 1.39, 2.5 и 3.2 нм. Вязкость рассчитывалась с использованием флуктуационно-диссипационной теоремы (формула Грина-Кубо). Показано, что коэффициент вязкости всех исследованных наножидкостей с углеродными нанотрубками увеличивается с увеличением их концентрации и длины. Это увеличение значительно выше, чем предсказывается соответствующими теориями для крупнодисперсных жидкостей. При заданных массовых концентрациях коэффициент вязкости наножидкостей с углеродными нанотрубками выше, чем у наножидкостей со сферическими частицами. Увеличение вязкости наножидкостей по сравнению с вязкостью базовой жидкости объясняется структурированием молекул базовой жидкости вблизи наночастиц или УНТ.
Ключевые слова
Об авторах
В. Я. Рудяк
Novosibirsk State University of Architecture and Civil Engineering
Россия
Россия
С. Л. Краснолуцкий
Novosibirsk State University of Architecture and Civil Engineering
Россия
Россия
Е. В. Лежнев
Novosibirsk State University of Architecture and Civil Engineering
Россия
Россия
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Рецензия
Для цитирования:
Рудяк В.Я., Краснолуцкий С.Л., Лежнев Е.В. Молекулярно-динамическое изучение вязкости наножидкостей с углеродными трубками. Наносистемы: физика, химия, математика. 2024;15(1):37-45. https://doi.org/10.17586/2220-8054-2024-15-1-37-45
For citation:
Rudyak V.Ya., Krasnolutskii S.L., Lezhnev E.V. Molecular dynamics study of nanofluids viscosity with carbon tubes. Nanosystems: Physics, Chemistry, Mathematics. 2024;15(1):37-45. https://doi.org/10.17586/2220-8054-2024-15-1-37-45
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