IMECH-IR  > 力学所知识产出(1956-2008)
A numerical exploration of secondary separation starting flow around a flat plate by the discrete vortex model
Ling GC(凌国灿); Bearman PW; Graham JWR
Source PublicationActa Mechanica Sinica
1988
Volume4Issue:4Pages:311-318
ISSN0567-7718
Abstract In the presen t work, a further numerical simulation of the starting flow around a flat plate normal to the direction of motion in a uniform fluid has been made by means of the discrete vortex method. The secondary separation occurring at rear surface of the plate is explored,~ and predicted approximately using Thwait's method. The calculated results show that in the early stages of the flow secondary separation does occur. The evolution of flow field, the vortex growing process and the characteristics of secondary vortices have been described. The time dependent drag coefficients, the vorticity shed from the edges and rear surface, and the separation positions are calculated as well as the distributions of velocity and pressure on the plate. In the case of flow normal to the plate, the calculated secondary vortices are weak. Their existence will change the local velocity distributions and affect pressure distributions. However, the effect on drag coefficient is negligible.
KeywordStarting Flow Fiat Plate Secondary Separation Discrete Vortex Model Numerical Exploration
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Language英语
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47512
Collection力学所知识产出(1956-2008)
Recommended Citation
GB/T 7714
Ling GC,Bearman PW,Graham JWR. A numerical exploration of secondary separation starting flow around a flat plate by the discrete vortex model[J]. Acta Mechanica Sinica,1988,4(4):311-318.
APA 凌国灿,Bearman PW,&Graham JWR.(1988).A numerical exploration of secondary separation starting flow around a flat plate by the discrete vortex model.Acta Mechanica Sinica,4(4),311-318.
MLA 凌国灿,et al."A numerical exploration of secondary separation starting flow around a flat plate by the discrete vortex model".Acta Mechanica Sinica 4.4(1988):311-318.
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