Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/54677
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dc.titleA numerical study of the effect of free surface and water depth on the stability of wakes: Use of GDQ formulation
dc.contributor.authorZhang, Q.D.
dc.contributor.authorKhoo, B.C.
dc.contributor.authorYeo, K.S.
dc.date.accessioned2014-06-16T09:33:38Z
dc.date.available2014-06-16T09:33:38Z
dc.date.issued1997-06-15
dc.identifier.citationZhang, Q.D.,Khoo, B.C.,Yeo, K.S. (1997-06-15). A numerical study of the effect of free surface and water depth on the stability of wakes: Use of GDQ formulation. International Journal for Numerical Methods in Fluids 24 (11) : 1079-1090. ScholarBank@NUS Repository.
dc.identifier.issn02712091
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/54677
dc.description.abstractThe instability character of a wake in the presence of a free surface is examined by a recently developed GDQ (generalized differential quadrature) numerical method. It is shown that at low Froude number the wake near a free surface is convectively unstable, but when the Froude number is increased further it becomes absolutely unstable. The effect of water depth on the stability property of the wake flow is also investigated. It is found that the influence of water depth on the critical point of instability is limited to at most 20% variation in the complex frequency, while the change in temporal growth rate is also limited to about 20%. © 1997 by John Wiley & Sons, Ltd.
dc.sourceScopus
dc.subjectFree surface
dc.subjectGDQ method
dc.subjectInstability
dc.subjectWake flow
dc.typeArticle
dc.contributor.departmentMECHANICAL & PRODUCTION ENGINEERING
dc.description.sourcetitleInternational Journal for Numerical Methods in Fluids
dc.description.volume24
dc.description.issue11
dc.description.page1079-1090
dc.description.codenIJNFD
dc.identifier.isiutNOT_IN_WOS
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