Matches in SemOpenAlex for { <https://semopenalex.org/work/W4286002098> ?p ?o ?g. }
- W4286002098 abstract "The transition of the viscosity $ensuremath{eta}$ from a collisional gas through a minimum value to a correlated liquid is investigated using computer simulations with the Green-Kubo relation. It is discovered that, as the temperature varies, the transition of $ensuremath{eta}$ is well described by the unity ratio of the instantaneous transverse sound speed ${C}_{T}$ to the average particle speed ${overline{v}}_{p}$. While ${C}_{T}/{overline{v}}_{p}<1, ensuremath{eta}$ increases with the temperature, since in this regime the viscosity is dominated by the gaslike individual dynamics. However, when ${C}_{T}/{overline{v}}_{p}>1$ where the cooperative dynamics dominates, the fundamental origin of viscosity of liquids is found to be just losing or gaining neighbors for individual particles, so that the viscosity of a typical liquid reasonably decreases with the temperature. Our results reveal that the viscosity transition point of ${C}_{T}/{overline{v}}_{p}=1$ is just $ensuremath{approx}20$ times the corresponding melting point for both two-dimensional and three-dimensional Yukawa liquids with various screening parameters, which probably can be used as a new criterion to distinguish the strong and weak couplings in plasma physics." @default.
- W4286002098 created "2022-07-21" @default.
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- W4286002098 date "2022-07-20" @default.
- W4286002098 modified "2023-10-14" @default.
- W4286002098 title "Origin of viscosity at individual particle level in Yukawa liquids" @default.
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- W4286002098 doi "https://doi.org/10.1103/physrevresearch.4.033064" @default.
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