Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2001.11b
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- Pages.676-681
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- 2001
Effect of an Obstacle on the Bottom Surface of a Circular Cylinder on the Spin-up Flow
원통 용기 바닥의 장애물이 스핀업 유동에 미치는 영향
- Published : 2001.11.01
Abstract
In this paper, the spin-up from rest to a state of solid-body rotation in a circular container with a slender rectangular obstacle on the bottom wall is analysed experimentally. We use a PIV method for the evolution of the free-surface flow. Laboratory experiments have been carried out for a variety of the obstacle height h(0, 5, 10 [mm]) and the liquid depth H(25, 50, 75, 100 [mm]). It was found that the spin-up time is crucially dependent on the obstacle height T. In the case of T=10[mm] the spin-up time is considerably shorter then the other cases.
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