LEBU板に付設した渦発生体による乱流伝熱促進

概要

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An experimental study was conducted to determine if the deterioration in heat transfer caused by the insertion of a large eddy break-up manipulator (LEBU plate) could be recovered by attaching a half-delta wing vortex generator to the LEBU plate. The vortex generator was found to work well to augment the wall heat transfer over a large streamwise distance, although the LEBU plate itself is expected to eliminate the large-scale eddy motion in the boundary layer. Some geometric parameters of the inserted LEBU plate attached to the vortex generator were varied in several steps. Within the experimental ranges of such parameters, the height and angle of attack of the vortex generator were found to seriously affect the magnitude of heat transfer augmentation, which becomes more pronounced as both of their values are increased.
社団法人日本機械学会の論文
1992-07-25