Accession Number : ADA157722


Title :   High Reynolds Number Wave Force Investigation in a Wave Flume.


Descriptive Note : Final rept. Sep 82-Feb 85,


Corporate Author : OREGON STATE UNIV CORVALLIS DEPT OF CIVIL ENGINEERING


Personal Author(s) : Hudspeth,R T ; Nath,J H


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a157722.pdf


Report Date : Mar 1985


Pagination or Media Count : 225


Abstract : A 12.75-inch diameter vertical cylinder was subjected to large laboratory waves with Keulegan-Carpenter number up to 17 at the local force transducer (20 at the still water surface) and Reynolds number up to 270,000(320,000 at the still water surface). Local force, local pressures, total force, and the elements for determining the overturning moments were measured. The purpose was to produce a high quality data set in the wave regime where both the velocity and the acceleration-dependent components of the wave forces are important. It was found that the forces were more acceleration-dependent than originally anticipated. The local forces were predicted quite well with the two-term Morison equation using the kinematics from the measurements, the linear, and the stream function wave theories. The best predictions used the measured kinematics. Keywords: Wave forces; Experiments; Large scale; Morison equations; High Reynolds; Cylinders; In-line forces; Transverse forces.


Descriptors :   *WATER WAVES , *CYLINDRICAL BODIES , KINEMATICS , VELOCITY , LOAD DISTRIBUTION , LABORATORY TESTS , WATER , ACCELERATION , LOADS(FORCES) , THEORY , MOMENTS , SURFACES , MATHEMATICAL PREDICTION , VERTICAL ORIENTATION , PRESSURE , TRANSDUCERS , HYDRODYNAMICS , REYNOLDS NUMBER , FUNCTIONS(MATHEMATICS) , TRANSVERSE


Subject Categories : Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE