In-depth Study on Cylinder Wake Controlled by Lorentz Force

doi:10.1088/0256-307X/28/12/124701

Chin. Phys. Lett.

2011, Vol. 28

Issue (12): 124701 DOI: 10.1088/0256-307X/28/12/124701

FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS)

In-depth Study on Cylinder Wake Controlled by Lorentz Force

ZHANG Hui, FAN Bao-Chun^**, CHEN Zhi-Hua

Science and Technology on Transient Physics Laboratory, Nanjing University of Science and Technology, Nanjing 210094

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ZHANG Hui, FAN Bao-Chun, CHEN Zhi-Hua 2011 Chin. Phys. Lett. 28 124701

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Abstract The underlying mechanisms of the electromagnetic control of cylinder wake are investigated and discussed. The effects of Lorentz force are found to be composed of two parts, one is its direct action on the cylinder (the wall Lorentz force) and the other is applied to the fluid (called the field Lorentz force) near the cylinder surface. Our results show that the wall Lorentz force can generate thrust and reduce the drag; the field Lorentz force increases the drag. However, the cylinder drag is dominated by the wall Lorentz force. In addition, the field Lorentz force above the upper surface decreases the lift, while the upper wall Lorentz force increases it. The total lift is dominated by the upper wall Lorentz force.

Keywords: 47.15.Cb 47.85.L-

Received: 17 May 2011 Published: 29 November 2011

PACS:	47.15.Cb	(Laminar boundary layers)
	47.85.L-	(Flow control)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/28/12/124701 OR https://cpl.iphy.ac.cn/Y2011/V28/I12/124701

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	ZHANG Hui
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	CHEN Zhi-Hua

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