抄録
Model investigation is carried out on the dynamic behavior of pork bones in a cylindrical bath agitated by a liquid jet. A spherical particle made of acrylic resin is used as a model for cut pork bone. Many acrylic particles are placed on the bottom of a water bath and then the bath is agitated by an upward water jet generated from a centered bottom nozzle. The water thus injected in the bath is circulated with a pump to keep the bath depth constant. The number of particles lifted up into the bath and the mean circulation time of the particles floating in the bath are measured. Empirical equations for these two quantities are proposed.
