2020 Fiscal Year Research-status Report
Spectral structure of turbulent Taylor-Couette flows
| Project/Area Number |
19K04180
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| Research Institution | Okinawa Institute of Science and Technology Graduate University |
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Principal Investigator |
チャクラボルティ ピナキ 沖縄科学技術大学院大学, 流体力学ユニット, 教授 (90745928)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | Turbulence / Taylor-Couette flow / Small-scale universality / Energy spectrum |
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| Outline of Annual Research Achievements |
Our focus in this project is to elucidate the spectral structure of turbulent Taylor-Couette (TC) flows. During the first year of the project, we equipped the OIST-TC experimental setup with a custom "flying hot-wire probe." Using this probe, we measured temporally-resolved velocity time series for a wide range of the TC flow phase space. Our results show that the spectral structure of turbulent TC flows is in excellent accord with Kolmogorov's phenomenological theory of turbulence.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
We are proceeding according to the plan detailed in the proposal.
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| Strategy for Future Research Activity |
We are proceeding according to the plan detailed in the proposal.
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