| Budget Amount *help |
¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
Aiming at the analysis of transport phenomena occurring in a multiphase flow of dispersed particles, a numerical method is proposed for the lubrication flow occurring in the narrow regions between particles. It was shown that the concept of "consistent direct discretisation" in the finite-difference method is essential for velocity-pressure coupling and capturing a particle-fluid interface, and its effectiveness for the flow analysis in a narrow passage was demonstrated.
The method was extended to permeate flows through membrane, which aims a number of particles covered with a permeable membrane (e.g. biological cells). The uniqueness of the method is imposing the pressure discontinuities at the front and rear sides of the interface to the pressure Poisson equation for coupling the velocity and pressure fields of an incompressible fluid. The proposed method was also proved to be effective for analysing the permeate flow driven by the lubrication-induced pressure.
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