広がり管および細まり管を通る中粒子砂水二相流の水力損失

概要

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In order to clarify the basic characteristics of heterogeneous two-phase flows, systematic experiments are carried out typically hetergeneous sand-water flows through a 7°divergent and a 7°convergent pipe. The recovery pressures in the divergent or the convergent pipe are acceptably higher or lower than the water-flow counterparts. The pressures increase or decrease considerably with the sand concentration C_υ. As C_υ increases, therefore, the apparent pressure loss in the divergent pipe decreases significantly and it often becomes negative unreasonably. But, if we consider the inertial energy of sand particles for the recovery pressures, the pressure losses are reasonably leveled up or down to the water-flow counterparts even at very high concentrations.
一般社団法人日本機械学会の論文
1992-03-25