![]() No commercial reproduction, distribution, display or performance rights in this work are provided. Procedure has also been used to investigate a number of breakwater configurationsįor which theoretical solutions are not obtainable. Verify the theory, and the two results are found to be in good agreement. Intensity factor, are compared with experimental measurements conducted to These data, in the form of polar plots of a dimensionless Openings of one-half, one, two, and three wave lengths, with wave approach anglesįrom 0° to 90° in 15° increments. Institute for Numerical Analysis of the National Bureau of Standards has recentlyĬompleted the computation of the transmission and distribution of wave energy for In recent years by the use of modern methods of machine computation. A submerged sphere advancing in regular deep-water waves at constant forward speed is analysed by linearized potential theory. ![]() The difficulties of computation of the required Mathieu functions have been overcome Wave lengths, and is useful for any angle of wave approach. Sommerfeld's solution, which is applicable for slit widths greater than three or four The method of Rayleigh for very small slits and the approximation based on ![]() Or diffracted waves in terms of Mathieu functions. Morse and Rubenstein separate the wave equation in elliptic cylinder coordinatesĪnd obtain the total transmission and the angular distribution of the scattered Theoretical solutions of Morse and Rubenstein for the diffraction of waves by ribbonsĪnd by slits with the two boundary conditions of zero wave function and zero normal The investigation of this subject by the Hydrodynamics Laboratories of the California Institute of Technology has been guided by the Investigations in this field have made use of Sommerfeld's solution of the diffraction of waves by a semiinfinite screen to obtain results for semiinfinite breakwaters, and by superposition, approximate results for continuous breakwaters with openings largeĬompared to the wave length. Diffraction is an important factor in the determination of the distribution of wave energy within a harbor, and therefore is of importance in harbor design.
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