The process of drying of a capillary specimen subjected to an acoustic-convective effect
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The process of drying of a model capillary specimen located in an intense acoustic field under the conditions of convective blowing is investigated. Video recording has registered a drop mechanism of water extraction from the capillaries of the specimen. It is shown that the driving force of this process is the difference between the acoustic pressure in the external flow and inside the cavity of the specimen. Measurements have demonstrated a certain increase in the temperature inside a capillary exposed to an acoustic field. The influence of the position of capillaries relative to the sonic wave front and of the flow velocity is investigated. It is shown that in the capillaries positioned horizontally the temperature in them is much lower than in those positioned vertically. Kinetic curves of drying of the specimen are obtained.
KeywordsCapillary Pressure Acoustic Field Acoustic Pressure Acoustic Action Model Specimen
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