Hydrodynamic Drag Force on Groups of Flat Platesby David J. Ball, Lect. in Civ. Engrg.; Simon Engrg. Labs., Univ. of Manchester, Manchester, England,
Norman J. Cox, Civ. Engr.; Livesey and Henderson, Albury, Surrey, England,
Serial Information: Journal of the Waterway Port Coastal and Ocean Division, 1978, Vol. 104, Issue 2, Pg. 163-173
Document Type: Journal Paper
The hydrodynamic drag on a rectangular group of 50 flat plates, with steady incident flow normal to the front of the group, is shown to be a function of five factors: (1)The acceleration of flow between the plates of a row; (2)the shielding of plates in line with the incident flow; (3)the diversion of flow around the front of the group; (4)the rejection of flow through the sides of the group; and (5)the formation within the group of an oscillating wake for the whole group. The drag force on each element of the group was measured for longitudinal and lateral spacings covering the range occurring in existing pier head pile groups that the flat plates simulated.
Subject Headings: Plates | Hydrodynamics | Oscillatory flow | Drag (fluid dynamics) | Spacing | Oscillations | Steady flow | Piers
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