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Thermophoretic motion of bodies with axial symmetry
KTH, School of Engineering Sciences (SCI), Mechanics.
2007 (English)In: Journal of Physics D: Applied Physics, ISSN 0022-3727, E-ISSN 1361-6463, Vol. 40, no 1, 148-155 p.Article in journal (Refereed) Published
Abstract [en]

Thermophoresis of axially symmetric bodies is investigated to first order in the Knudsen number, Kn. The study is made in the limit where the typical length of the immersed body is small compared with the mean free path. It is shown that in this case, in contrast to what is the case for spherical bodies, the arising thermal force on the body is not in general anti-parallel to the temperature gradient. It is also shown that the gas exerts a torque on the body, which in magnitude and direction depends on the body geometry. Equations of motion describing the body movement are derived. Stationary solutions are studied.

Place, publisher, year, edition, pages
2007. Vol. 40, no 1, 148-155 p.
Identifiers
URN: urn:nbn:se:kth:diva-16302DOI: 10.1088/0022-3727/40/1/007ISI: 000243150300025Scopus ID: 2-s2.0-33947669897OAI: oai:DiVA.org:kth-16302DiVA: diva2:334344
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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