Molecular dynamics simulation of liquid argon flow in a nanoscale channel
نویسندگان
چکیده
The convective heat transfer in the Micro/ Nanoscale channel is of significant importance engineering applications, and classical macroscopic theory invalid at depicting its physical processes mechanisms. In this study, molecular dynamics (MD) simulations are conducted to investigate liquid argon flow through a nanoscale channel. results show that fully developed bulk temperature agrees with continuum based solution analytical energy equation height 24 nm, while agreement reduces decrease due features. At 6 velocity slip exists around hydrophobic wall, enhanced near-wall viscosity reduced length observed larger fluid–wall interaction strength. A region 2 Å wide without atoms formed hydrophilic leading zero hollow domain no-slip boundary condition. Most importantly, thermal remarkably dependent on density layering proximity wall inversely proportional first peak value adjacent interface. This observation provides new idea tune dissipation properties interface by controlling layering.
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ژورنال
عنوان ژورنال: International Journal of Thermal Sciences
سال: 2021
ISSN: ['1778-4166', '1290-0729']
DOI: https://doi.org/10.1016/j.ijthermalsci.2021.107166