Handle URI:
http://hdl.handle.net/10754/554125
Title:
Origin of Knudsen forces on heated microbeams
Authors:
Zhu, Taishan; Ye, Wenjing
Abstract:
The presented work probes the fundamentals of Knudsen forces. Using the direct simulation Monte Carlo (DSMC) method, the flows induced by temperature inhomogeneity within a representative configuration and the Knudsen force acting on a heated microbeam are captured as functions of Knudsen number in the entire flow regime. Both flow strength and Knudsen force peak in the transition regime and negative Knudsen force absent in experimental data is observed. The mechanisms of the thermally induced flows and Knudsen forces are studied. It has been found that thermal edge flow is the main driven source for the formation of the Knudsen force on microbeams and domain configuration plays an important role in the process.
Citation:
Origin of Knudsen forces on heated microbeams 2010, 82 (3) Physical Review E
Publisher:
American Physical Society (APS)
Journal:
Physical Review E
Issue Date:
9-Sep-2010
DOI:
10.1103/PhysRevE.82.036308
Type:
Article
ISSN:
1539-3755; 1550-2376
Additional Links:
http://link.aps.org/doi/10.1103/PhysRevE.82.036308
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorZhu, Taishanen
dc.contributor.authorYe, Wenjingen
dc.date.accessioned2015-05-18T21:57:03Zen
dc.date.available2015-05-18T21:57:03Zen
dc.date.issued2010-09-09en
dc.identifier.citationOrigin of Knudsen forces on heated microbeams 2010, 82 (3) Physical Review Een
dc.identifier.issn1539-3755en
dc.identifier.issn1550-2376en
dc.identifier.doi10.1103/PhysRevE.82.036308en
dc.identifier.urihttp://hdl.handle.net/10754/554125en
dc.description.abstractThe presented work probes the fundamentals of Knudsen forces. Using the direct simulation Monte Carlo (DSMC) method, the flows induced by temperature inhomogeneity within a representative configuration and the Knudsen force acting on a heated microbeam are captured as functions of Knudsen number in the entire flow regime. Both flow strength and Knudsen force peak in the transition regime and negative Knudsen force absent in experimental data is observed. The mechanisms of the thermally induced flows and Knudsen forces are studied. It has been found that thermal edge flow is the main driven source for the formation of the Knudsen force on microbeams and domain configuration plays an important role in the process.en
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevE.82.036308en
dc.rightsArchived with thanks to Physical Review Een
dc.titleOrigin of Knudsen forces on heated microbeamsen
dc.typeArticleen
dc.identifier.journalPhysical Review Een
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Mechanical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kongen
dc.contributor.institutionThe Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kongen
kaust.authorYe, Wenjingen
kaust.grant.fundedcenterKAUST-HKUST Micro/Nanofluidic Joint Laboratoryen
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