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2

概要

論文の詳細を見る
Experiments on draining of a high-viscosity Bingham fluid from a cylindrical tank were conducted. The experimental methods are the same as those reported previously. In the experiments for a Bingham fluid, tomato catsup was used, and the time required for draining of the test fluids was measured. The measured drain time was generally well correlated by the equations derived from the macroscopic mechanical energy balance equations. However, it became clear that the drain time became longer than the one calculated by the correlation equations, if the yield share stress of the fluid becomes greater than the shear stress at drain pipe wall of which is calculated based on the pressure drop value. On the other hand, in case of a pseudoplastic fluid, CMC solution was used, it turned out that the drain time depends on flow behavior index n of the power-law model fluid. As a result, experimental results were well correlated in the n range of 1.1 to 1.72 by the equations derived from the macroscopic mechanical energy balance equations.
八戸工業高等専門学校の論文