| Suppression of Flow Separation Around A Circular Cylinder by Utilizing Lorentz Force |
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| 作者姓名： | 张辉 范宝春 陈志华 周本谋 |
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| 作者单位： | National Key Laboratory of Transient Physics Nanjing University of Science and Technology，National Key Laboratory of Transient Physics，Nanjing University of Science and Technology，National Key Laboratory of Transient Physics，Nanjing University of Science and Technology，National Key Laboratory of Transient Physics，Nanjing University of Science and Technology，Nanjing 210094，China，Nanjing 210094，China，Nanjing 210094，China，Nanjing 210094，China |
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| 摘 要： | Both experimental and numerical investigations on the flow past a cylinder under the influence of Lorentz force （electromagnetic force） were conducted in an electrically low-conducting fluid. The Lorentz force is applied beth locally, wholly and periodically on the surface of the cylinder, and their control effects for flow ,separation were investigated Both experimental and numerical results show that Lorentz force can suppress the flow separation with Lorentz force applied on beth local and whole surface of the cylinder. However, when the periodic and opposite Lorentz force adopted, the cylinder wake cannot be stabilized.
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| 关 键 词： | 流量控制 洛伦兹力 涡流 海洋工程 |
Suppression of Flow Separation Around A Circular Cylinder by Utilizing Lorentz Force |
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| ZHANG Hui,FAN Bao-chun,CHEN Zhi-hua,ZHOU Ben-mou.Suppression of Flow Separation Around A Circular Cylinder by Utilizing Lorentz Force[J].China Ocean Engineering,2008,22(1):87-95. |
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| Authors: | ZHANG Hui FAN Bao-chun CHEN Zhi-hua ZHOU Ben-mou |
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| Institution: | National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China |
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| Abstract: | Both experimental and numerical investigations on the flow past a cylinder under the influence of Lorentz force (electromagnetic force) were conducted in an electrically low-conducting fluid. The Lorentz force is applied both locally, wholly and periodically on the surface of the cylinder, and their control effects for flow separation were investigated Both experimental and numerical results show that Lorentz force can suppress the flow separation with Lorentz force applied on both local and whole surface of the cylinder. However, when the periodic and opposite Lorentz force adopted, the cylinder wake cannot be stabilized. |
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| Keywords: | flow control Lorentz force vortex shedding |
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