Investigation of the wall region of gas-liquid flow using an electrodiffusional technique |
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Authors: | O N Kashinsky |
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Affiliation: | (1) Institute of Thermophysics, 630090 Novosibirsk, Russia |
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Abstract: | Measurements of the hydrodynamic characteristics of upward gas-liquid flow in an inclined channel were performed. Experiments
were made by an electrodiffusional method using microprobes for wall shear stress and liquid velocity measurements. Special
attention was paid to the study of two-phase flow structure in the vicinity of the wall. A strong effect of the channel orientation
on the characteristics of the flow was demonstrated. The results show that maximum wall shear stress values correspond to
an intermediate channel inclination. High values of near-wall void fraction result in the reduction of liquid velocity fluctuations
in horizontal and near-horizontal channel positions.
This paper was presented at the International Workshop on Electrodiffusion Diagnostics of Flows held in Dourdan, France, May
1993. |
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