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		近壁面柱体涡激振动的迟滞效应1)
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			HYSTERESIS IN VORTEX-INDUCED VIBRATIONS OF A NEAR-WALL CYLINDER1)
			 
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		 图9. 涡激振动柱体与固定柱体的绕流流场对比  | 
	
Fig.9. Comparison of the flow field around a vibrating cylinder with that around a fixed cylinder ($U =0.20$m/s,${Re}=1.60\times 10^{4}$,$e/D=1.00$)}  | 
	
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