P10 直方体ソノリアクター内の流速分布とソノケミカル効率(第II部,ポスター発表)

概要

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We observed ultrasound field in a rectangular sonochemical reactor with the sheeted laser and velocity profiles within the rectangular sonochemical reactor by LDV (Laser Doppler Velocimetry). The reactor consisted of the 490 kHz transducer and the rectangular glass cell of 20 cm×20 cm×65 cm. The experimental set up was shown in Fig. 1. All measurements were carried out at room temperature. At every power, we observed the fast upstream of water along the central axis of a sonochemical reactor and the circulating flows near the wall surface of the reactor. Howe.ver, the flow profiles were strongly influenced by the applied power. The fountain appeared at 30 W, and just above the power, atomization set in. As increasing the power, the velocity above the transducer was accelerated upward and the downstream of water increased. At 50 W, the circulation in the reactor was clearly observed and the velocity profile near the liquid surface was well reproduced by the Eckart model.
日本ソノケミストリー学会の論文
2008-12-05