レオロジー特性の異なる高粘性流体の容器からの排出に関する研究

概要

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Experiments on draining of a cylindrical tank with a discharge pipe were conducted. Starch and CMC solutions were prepared as a Newtonian fluid and a pseudoplastic fluid, respectively. In the experiments, draining time for the fluids was measured. Initially, a sample solution was poured into the tank. Subsequently, the attached valve was opened, and the fluid drained out by gravity. When the container was filled with the Newtonian fluid, the draining time became longer depending on the fluid viscosity. On the other hand, in case of the pseudoplastic fluid, it turned out that the draining time depends on the value of flow behavior index n of the power-law model. As a result, experimental results were well correlated using equations for Newtonian and pseudoplastic fluids which were deduced from the macroscopic mechanical energy balance eauations.
八戸工業高等専門学校の論文
2004-12-20