Accession Number : AD0729010

Title :   Second-Order Theory for Nonsinusoidal Oscillations of a Cylinder in a Free Surface.

Descriptive Note : Final rept.,

Corporate Author : NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD

Personal Author(s) : Lee,Choung Mook

Report Date : AUG 1971

Pagination or Media Count : 67

Abstract : A nonlinear hydrodynamic response resulting from vertical oscillations of a two-dimensional horizontal cylinder in a free surface of an incompressible, inviscid fluid is investigated. The cylinder is forced to oscillate at the sum of two monochromatic frequencies. Numerical results are presented graphically for the hydrodynamic force and outgoing waves associated with the difference of the two fundamental frequencies for a semisubmerged circular cylinder. Results previously obtained for the first-order and some second-order hydrodynamic quantities are also shown for purposes of comparison. (Author)

Descriptors :   (*SHIP HULLS, HYDRODYNAMICS), CYLINDRICAL BODIES, OSCILLATION, OCEAN WAVES, NUMERICAL ANALYSIS, FREQUENCY, BOUNDARY VALUE PROBLEMS, FLOATING BODIES

Subject Categories : Marine Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE