download0 view179
twitter facebook

공공누리This item is licensed Korea Open Government License

Title
Nanoscale Spiral Flow in a Cylindrical Channel
Author(s)
정영균
Publication Year
2011-05-23
Abstract
We study the behavior of pressure-driven flow in a cylindrical nanochannel patterned with different wettability using molecular dynamics simulations. We consider the flow perpendicular or parallel to the periodic stripes of wetting and nonwetting materials. For both geometries, we observe a sharp increase in the longitudinal velocity of the flow as wetting stripe width decreases, which is clearly distinguishable from the case of shear-driven flow. When the channel wall is spirally patterned with distinct wetting stripes, the transverse velocity of the flow is generated in the channel and its generation depends strongly on the degree of molecular ordering above the wetting stripes, which can be controlled by helical angle, wetting stripe width, the relative area of the wetting region, and the strength of the fluid-wall interaction.
Keyword
Molecular dynamics; Nanoflow
Journal Title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
Citation Volume
83
ISSN
1539-3755
Files in This Item:
There are no files associated with this item.
Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/13955
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART83951056
Export
RIS (EndNote)
XLS (Excel)
XML

Browse