2310 磁気共鳴画像法を用いた粒子分散流体の流速測定(S42-3 複雑流体の流動現象(3),S42 複雑流体の流動現象)  [in Japanese] 2310 Velocity Measurements in Particle Suspension Flows Using Magnetic Resonance Imaging  [in Japanese]

Velocity profiles in concentrated particle suspension flows through a channel were measured using magnetic resonance imaging (MRI). We used non-Newtonian fluids containing suspended particles at high volume fractions. The particles have spherical, slender, and disk-like shapes, respectively. These suspension fluids are opaque. The channel used has a square cross section and an abrupt contraction geometry. As a result, we found that the velocity profile depends on the particle shape in the contraction. Spheres did not affect the flow field but slender and disk-like particles caused a concave shape in the velocity profile.