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Journal of Ship Research 57 (03): 141–154.
Paper Number: SNAME-JSR-2013-57-3-141
Published: 01 September 2013
...Ioannis K. Chatjigeorgiou; Touvia Miloh A new multipole expansion method based on Havelock's theorem is proposed for solving the hydrodynamic problem of a submerged spheroid moving below a (linearized) free surface. In particular, the Green's function thus derived can be used to determine the...
Journal of Ship Research 35 (03): 183–190.
Paper Number: SNAME-JSR-1991-35-3-183
Published: 01 September 1991
...C. H. Lee; J. N. Newman Computations are presented for the linearized force and moment acting on a submerged slender spheroid in regular waves, the resulting pitch and heave motions, and the second-order mean force and moment. These numerical results, which are based on the use of a three...
Journal of Ship Research 33 (02): 81–83.
Paper Number: SNAME-JSR-1989-33-2-81
Published: 01 June 1989
...E.O Tuck A slender body consisting of a submerged finned spheroid is shown to have zero wave resistance at a design speed, and lower resistance than either the spheroid alone or the fin alone in a range of speeds around design speed 1 6 1989 1 6 1989 1989. The Society of Naval...
Journal of Ship Research 33 (02): 84–92.
Paper Number: SNAME-JSR-1989-33-2-84
Published: 01 June 1989
...G. X. Wu; R. Eatock Taylor The problem of wave radiation and diffraction by submerged spheroids is analyzed using linearized three-dimensional potential-flow theory. The solution is obtained by expanding the velocity potential into a series of Legendre functions in a spheroidal coordinate system...
Journal of Ship Research 31 (01): 1–13.
Paper Number: SNAME-JSR-1987-31-1-1
Published: 01 March 1987
... calculation ship research vertical velocity approximation null point wave panel neumann-kelvin problem monopole method spheroid Monopole integration Journal of Ship Research, Vol. 31, No. 1, March 1987, pp. 1-13 Journal of Ship Research Numerical Aspects of the Neumann-Kelvin Problem Lawrence J...
Journal of Ship Research 29 (02): 105–111.
Paper Number: SNAME-JSR-1985-29-2-105
Published: 01 June 1985
... velocity potential. Their performance is tested for two slender spheroids. Comparisons are made with predictions obtained from a three-dimensional numerical solution at zero speed—the expression common to strip-theory programs which uses the ship hull as the integration surface—and the direct solution of...
Journal of Ship Research 28 (01): 29–47.
Paper Number: SNAME-JSR-1984-28-1-29
Published: 01 March 1984
... moment in head and bow waves on a prolate spheroid. 1 3 1984 1 3 1984 1984. The Society of Naval Architects and Marine Engineers approximation incident wave exciting force Artificial Intelligence outer solution fr 0 Reservoir Characterization wavelength velocity potential...
Journal of Ship Research 27 (02): 121–130.
Paper Number: SNAME-JSR-1983-27-2-121
Published: 01 June 1983
...T. Miloh The problem of self-propulsion of an elongated deformable body moving in an infinite medium of inviscid fluid is considered in some detail. A prolate spheroid is chosen as a model shape, and a particular deformation pattern which maximizes the Froude efficiency is sought. The Froude...
Journal of Ship Research 24 (04): 256–270.
Paper Number: SNAME-JSR-1980-24-4-256
Published: 01 December 1980
... demonstrated how these expressions can be applied for the case of a prolate spheroid maneuvering in shallow water, where useful analytical expressions for the hydrodynamical coefficients are also obtained. By employing the concept of "equivalent spheroid" it is also shown that these results are universal in...
Journal of Ship Research 24 (02): 114–122.
Paper Number: SNAME-JSR-1980-24-2-114
Published: 01 June 1980
... Artificial Intelligence calculation displacement body pressure gradient drag coefficient revolution experiment spheroid lyon model Upstream Oil & Gas granville weinbaum equation displacement-body method Patel Boundary Layer hypothesis Journal of Ship Research, Vol. 24, No. 2, June 1980...
Journal of Ship Research 20 (04): 204–214.
Paper Number: SNAME-JSR-1976-20-4-204
Published: 01 December 1976
...V. Seetharama Rao; C. J. Garrison This paper considers the interaction of a train of regular surface waves with a half spheroid which is completely submerged in water of finite depth and oriented such that its two equal axes lie on the horizontal impermeable bottom. The boundary-value problem...
Journal of Ship Research 19 (04): 206–218.
Paper Number: SNAME-JSR-1975-19-4-206
Published: 01 December 1975
... source strength accuracy submergence coordinate system equation Artificial Intelligence velocity error Computation normal velocity Smith hess tangential velocity spheroid source distribution node ship research source surface configuration singularity sheet triangular patch Journal...
Journal of Ship Research 18 (03): 185–202.
Paper Number: SNAME-JSR-1974-18-3-185
Published: 01 September 1974
... matrix equation rigidity Upstream Oil & Gas landweber natural frequency sequence vertical vibration vibration frequency calculation ship hull spheroid cross section Journal of Ship Research, Vol. 18, No. 3, Sept. 1974, pp. 185-202 Transverse Vibrations of a Ship Hull in Ideal Fluid...
Journal of Ship Research 17 (02): 72–79.
Paper Number: SNAME-JSR-1973-17-2-72
Published: 01 June 1973
...César Farell; Oktay Güven Towing-tank measurements of the viscous resistance of a spheroid model by means of wake surveys together with total resistance measurements show that the proximity of the free surface greatly influences the viscous resistance, which becomes much larger than the deep...
Journal of Ship Research 17 (01): 1–11.
Paper Number: SNAME-JSR-1973-17-1-1
Published: 01 March 1973
...César Farell A solution to the problem of potential flow about a submerged prelate spheroid in axial horizontal motion beneath a free surface has been derived within the theory of infinitesimal waves, satisfying exactly the body boundary condition, and the wave resistance of the spheroid has been...
Journal of Ship Research 16 (01): 41–46.
Paper Number: SNAME-JSR-1972-16-1-41
Published: 01 March 1972
...J. N. Newman Singular velocity potentials are derived which satisfy the linear free-surface boundary condition and appropriate initial condition or radiation condition, but which are singular in the same form as a spheroidal harmonic. Thus these singularities can be utilized to satisfy boundary...
Journal of Ship Research 15 (03): 246–252.
Paper Number: SNAME-JSR-1971-15-3-246
Published: 01 September 1971
...Cesar Farell The problem of incompressible potential flow about a prolate spheroid in axial motion parallel to a plane wall is considered and a solution free of any approximations, although not in closed form, is obtained. The added-mass coefficient for this motion is evaluated and the results are...
Journal of Ship Research 14 (01): 23–50.
Paper Number: SNAME-JSR-1970-14-1-23
Published: 01 March 1970
... boundary condition on the solid wall, and takes into account the nonlinearity of the condition at the free surface. The author applies the new theory to a submerged spheroid, to calculate wave resistance. Experiments were conducted to verify the theory, and their results are compared with the theoretical...
Journal of Ship Research 12 (03): 163–164.
Paper Number: SNAME-JSR-1968-12-3-163
Published: 01 September 1968
...Herbert Becker Through the use of general instability theory for doubly curved orthotropic shells, a mathematical relation was developed to predict external pressure buckling of stiffened prolate spheroids. The procedure was applied to two experiments which were found to be in fair agreement with...
Journal of Ship Research 10 (04): 242–252.
Paper Number: SNAME-JSR-1966-10-4-242
Published: 01 December 1966
... the first-order slender-body potential valid for all points in the fluid to within a wave length of the ship is found. This is used to determine the hydrodynamic pressure on the bottom of the fluid. Numerical results are presented for the case of a spheroid. 1 12 1966 1 12 1966 1966...
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