Thermophoretic force acting on a sphere in the temperature gradient by a spherical heat source
Abstract
The interaction between two spheres by the thermophoretic force is presented in the slip flow regime when one of them, which is larger and has a higher temperature, plays a role of heat source and the other is considered as a suspended sphere. The results show that the sizes and separation distance of the spheres strongly affect the thermophoretic force as well as the temperature difference between the higher temperature sphere and the uniform surrounding gas. The interaction is linearly dependent on characteristics of source sphere and on the properties of the gas and sphere.
- Publication:
-
AIAA, 28th Thermophysics Conference
- Pub Date:
- July 1993
- Bibcode:
- 1993thph.confS....Y
- Keywords:
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- Heat Sources;
- Slip Flow;
- Spheres;
- Temperature Gradients;
- Thermophoresis;
- Boundary Conditions;
- Heat Transfer;
- Mathematical Models;
- Spherical Coordinates;
- Fluid Mechanics and Heat Transfer