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Int. J. Mol. Sci. 2009, 10(11), 4638-4706; doi:10.3390/ijms10114638
Review

Molecular Momentum Transport at Fluid-Solid Interfaces in MEMS/NEMS: A Review

1,* , 1,2
,
1
 and
1
1 Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China 2 Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
* Author to whom correspondence should be addressed.
Received: 28 August 2009 / Revised: 17 October 2009 / Accepted: 26 October 2009 / Published: 29 October 2009
(This article belongs to the Special Issue Energy Technology for the 21st Century - Materials and Devices)
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Abstract

This review is focused on molecular momentum transport at fluid-solid interfaces mainly related to microfluidics and nanofluidics in micro-/nano-electro-mechanical systems (MEMS/NEMS). This broad subject covers molecular dynamics behaviors, boundary conditions, molecular momentum accommodations, theoretical and phenomenological models in terms of gas-solid and liquid-solid interfaces affected by various physical factors, such as fluid and solid species, surface roughness, surface patterns, wettability, temperature, pressure, fluid viscosity and polarity. This review offers an overview of the major achievements, including experiments, theories and molecular dynamics simulations, in the field with particular emphasis on the effects on microfluidics and nanofluidics in nanoscience and nanotechnology. In Section 1 we present a brief introduction on the backgrounds, history and concepts. Sections 2 and 3 are focused on molecular momentum transport at gas-solid and liquid-solid interfaces, respectively. Summary and conclusions are finally presented in Section 4.
Keywords: fluid-solid interfaces; molecular momentum transport; velocity slip; boundary conditions; momentum accommodation coefficient; micro/nanofluidics; molecular dynamics fluid-solid interfaces; molecular momentum transport; velocity slip; boundary conditions; momentum accommodation coefficient; micro/nanofluidics; molecular dynamics
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Cao, B.-Y.; Sun, J.; Chen, M.; Guo, Z.-Y. Molecular Momentum Transport at Fluid-Solid Interfaces in MEMS/NEMS: A Review. Int. J. Mol. Sci. 2009, 10, 4638-4706.

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