Abstract
The use of an electrodynamic chamber in measuring forces arising from forced convection, free convection and photophoresis was demonstrated. A suspended particle was irradiated with a focused laser beam horizontally from one side and the three forces were measured as a function of temperature and flow velocity. The forced convection force increased in temperature due to gas velocity increase, while the free convection term decreased with flow velocity, the rate of decrease being very strongly dependent with the flow direction. The photophoretic force increased with temperature, independent of the particle diameter and flow velocity. The particle thermal conductivity, as determined from the PPF, agreed well with that measured using a different method.
| Original language | English |
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| State | Published - 1 Jan 1998 |
| Event | Proceedings of the 1998 ASME Fluids Engineering Division Summer Meeting - Washington, DC, USA Duration: 21 Jun 1998 → 25 Jun 1998 |
Conference
| Conference | Proceedings of the 1998 ASME Fluids Engineering Division Summer Meeting |
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| City | Washington, DC, USA |
| Period | 21/06/98 → 25/06/98 |
ASJC Scopus subject areas
- General Engineering