Study on the Control of the Motion of Fine Particles in an Almost Rigidly Rotating Flow
| Project/Area Number |
11650172
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Fluid engineering
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| Research Institution | Nagoya Institute of Technology |
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Principal Investigator |
TSUCHIDA Yoichi Nagoya Institute of Technology, Mechanical Engineering, Associate Professor, 工学部, 助教授 (30144190)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2000: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1999: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | Internal Flow / Axisymmetric Flow / Multi-phase Flow / Particle Motion / Almost Rigidly Rotating Flow / Stewartson Layer / Ekman Layer / Source-Sink Flow |
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| Research Abstract |
We considered two methods to control the motion of fine particles dispersed with very low mass-concentration in an almost rigidly rotating though-flow within a highly rotating double-walled container consisting of a housing and a core. This flow is produced under very small Rossby and Ekman numbers, and consists of Ekman and Stewartson layers and interior and rigid-rotation regions.
1. Method to control the particle motion by shaping walls arbitrarily
First, in order to clarify flow characteristics of the Stewartson layer, we derived theoretical solutions of the Stewartson-layer flow for the arbitrarily shaped walls by a pertubation method. Next, we derived theoretical solutions of the motion of the fine particles in the flow, and considered the relationship between the particle motion and wall configuration.
2. Method to control the particle motion by setting a source flow
We numerically simulated the flow and particle motion in the case in which the source flow is set normal to the wall attached the Stewartson layer and is set parallel to the rotation axis at the wall attached to the Ekman layer, and considered the influence of the source flow on the flow and particle motion.
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Report
(3 results)
Research Products
(20 results)
