Effect of motion of the medium on the photophoresis of hot hydrosol particles

The photophoretic motion of a solid spherical particle in a viscous fluid is described theoretically in the Stokes approximation for small Péclet and Reynolds numbers and large temperature differences near the particle. In solving the hydrodynamic equations, an exponential-power law is used for the...

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Bibliographic Details
Published in:Fluid dynamics 2006-11, Vol.41 (6), p.984-991
Main Author: Malai, N. V.
Format: Article
Language:English
Subjects:
Asymptotic methods
Asymptotic series
Fluid flow
Hydrodynamic equations
Mathematical analysis
Motion effects
Photophoresis
Reynolds number
Temperature dependence
Temperature gradients
Viscous fluids
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Summary:The photophoretic motion of a solid spherical particle in a viscous fluid is described theoretically in the Stokes approximation for small Péclet and Reynolds numbers and large temperature differences near the particle. In solving the hydrodynamic equations, an exponential-power law is used for the temperature dependence of the viscosity. The heat transfer equations are solved using the method of matched asymptotic expansions. The possibility of the experimental observation of photophoresis in liquids is discussed.
ISSN:0015-4628
1573-8507
DOI:10.1007/s10697-006-0113-0