| Budget Amount *help |
¥45,110,000 (Direct Cost: ¥34,700,000、Indirect Cost: ¥10,410,000)
Fiscal Year 2018: ¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
Fiscal Year 2017: ¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
Fiscal Year 2016: ¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
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| Outline of Final Research Achievements |
In this study, various velocity profiles of different viscous fluids obtained by using MRI technique at different rpm values are analytically analyzed to find the flow regularity and understand the shear stress reduction mechanism in Couette flows. Initially, the Newtonian region was identified in some velocity profiles of Non-Newtonian fluids near the rotor and the Newtonian velocity equation is applied to exclude the Newtonian region from the whole sheared region to identify the rest of Non-Newtonian region present. Subsequently, it was found that this remaining Non-Newtonian region found in almost 50 velocity profiles can be either fitted by the quadratic equation or the cubic equation. This indicates that there exists a simple and clear mechanisms for the shear stress reduction and the energy dispersion during the shear transfer in Couette flows, which are represented by the differential of these velocity functions.
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