... wave height simulation spectrum wave train splitting force fpso otc 16180 equation upstream oil & gas subsea system floating production system interaction reservoir characterization offshore technology conference offshore structure freak wave wave sequence wave structure...

... in realistic wave trains is a useful tool in these cases, and this is the topic discussed and illustrated in this paper. The paper outlines the basic steps required for such simulations, and then discusses in more detail the incorporation of diffraction effects and the numerical simulation of realistic wave...

... model and the measurements confirms that the hybrid wave model is more accurate and more reliable than the other three methods, especially for steep and broad-banded wave trains. Introduction Precise knowledge of ocean waves is crucial to the design of offshore structures that are both safe...

... ABSTRACT The present paper describes a numerical method for simulating xansient, nonlinear interactions of an irregular wave train with a Largefried offshore structure of arbh.rary shape in three dimensions. rhe boundary conditions are satisfied to second order by a time- ;tepping procedure...

... should be equipped with slender wave attenuation systems to reduce the wave height in the intake area. porosity absorber wave absorber intake area absorber element wave train interaction problem reflection efficiency structure-seaway interaction problem wave attenuation system otc 6989...

... narrow and broad bandwidth wave train respectively, is found to be satisfactorily consistent with numerical results based on the finite-amplitude wave theory. Both numerical results and measurements are compared with the predictions of the three methods, and this comparison indicates that the prediction...

... wave height mean run length upstream oil & gas machine learning spectra wave height standard deviation spectrum wave train wave group correlation wave staff wave buoy cross correlation hmax hs intercomparison artificial intelligence frequency storm siweh spectra groupiness...

... the incident irregular wave train contains waves which exceed the significant wave height. When the purpose of a structure is to protect sensitive facilities whose failure could result in major environmental as well as economic losses, the rate of overtopping anticipated under the design condition must...

... to a matrix equation to be solved at each time step. upstream oil & gas prediction diffraction theory shallow wave force wave condition british columbia maximum force matrix equation approximate method wave train steep shallow wave cylinder isaacson procedure circular cylinder time...

.... In the experiments extreme waves are generated in three ways: The dispersion properties of gravity waves are used to generate a transient situation in which the energy of the individual waves in a wave train concentrates towards a specified point in time and space, resulting in one extreme wave; Very steep...

... ABSTRACT The equilibrium position of a center tethered buoyant spar buoy on the surface of the ocean is parallel to the crests of the wave train. This phenomenon has been used in the design of a wave direction monitoring buoy which permits reliable and inexpensive measurement of wave...

... of 65,000 ft (19,800 m) near Huntington Beach, Calif. Two distinct wave trains may be identified. In deep water these intercept with an angle near 90 degrees. In shallow water both wave trains show refraction and the crests are more nearly parallel. From these two examples one might suspect that photos...

... of an earlier executed program[1]. It will be shown that, using the results of measured or calculated drifting forces on an object moored in regular waves, a prediction can be made of the drifting forces induced by wave trains consisting of regular wave groups. Also for an irregular wave train the drifting...

... particular wave period. amplitude attitude operation hull pressure variation upstream oil & gas platform concept drilling equipment natural period basin configuration resistance gravity consideration synchronism wave train arrangement superstructure dimension motion stability...