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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental study of forces on a cylinder in oscillatory flow with a cross current
AbstractForces on a circular cylinder have been measured with nominally two-dimensional current and oscillatory flow at right angles. Previous results for purely oscillatory flow defined by a Keulegan-Carpenter number, , have been extended for reduced velocities, , in the range 3–10. For modification of the Karman street by oscillation is complex and locking-on has a dominant influence. For simply adding forces due to the current and oscillation as though in isolation generally gives conservative results. The ‘current’ drag shows considerable variation and can even be negative. The Morison fit to the in-line force is generally less satisfactory when there is a current and can be wholly inadequate.
Experimental study of forces on a cylinder in oscillatory flow with a cross current
AbstractForces on a circular cylinder have been measured with nominally two-dimensional current and oscillatory flow at right angles. Previous results for purely oscillatory flow defined by a Keulegan-Carpenter number, , have been extended for reduced velocities, , in the range 3–10. For modification of the Karman street by oscillation is complex and locking-on has a dominant influence. For simply adding forces due to the current and oscillation as though in isolation generally gives conservative results. The ‘current’ drag shows considerable variation and can even be negative. The Morison fit to the in-line force is generally less satisfactory when there is a current and can be wholly inadequate.
Experimental study of forces on a cylinder in oscillatory flow with a cross current
Stansby, P.K. (Autor:in) / El-Khairy, N. (Autor:in) / Bullock, G.N. (Autor:in)
Applied Ocean Research ; 5 ; 195-203
01.01.1983
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Flow , cylinder , force , current , oscillation
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