20505 磁性流体テイラークエット渦流れにおける渦モード遷移の磁場制御(OS7 知能流体・構造システム)

概要

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A successful application of the ultrasonic velocity profile (UVP) measuring technique to investigations on the flow of magnetic fluids is described. The flow structure of a magnetic fluid in a concentric annular geometry with a small aspect ratio of 3 and a radius ratio of 0.6 was investigated for an inner cylinder rotation. Axial velocity distributions were measured using the UVP measuring technique. A non-uniform magnetic field was applied to the flow field using a permanent magnet located on the outside of the vessel. The UVP monitor is model X-3 PSi in basic ultrasound frequency of 8MHz. The UVP method was demonstrated to provide useful information on the structure of Taylor-Couette vortex flow in a magnetic fluid. The influence of the magnetic field to this flow is also discussed in the presentation.
社団法人日本機械学会の論文
2005-03-17