... ABSTRACT The maximum significant wave heights are estimated semi-empirically using the premise that waves with frequencies higher than the peak frequency f p reach their maximum height in this paper. The semi-empirical formula can be described by the relationship between H s / h and h...

... analysis of k based on CFD based form factors has emerged as a viable approach. This paper introduces and examines two formulas: one for k at different draft and another for change of form factor between drafts, denoted as Δk . The regression process of the empirical formula, as well as the accuracy...

... guidance to meet the modern operational needs of ULCS in ports. This paper focuses on the tugboat configuration during the berthing and unberthing processes. Using empirical formulas and numerical simulations with the hydrodynamic analysis software AQWA, three types of typical ULCS were studied under...

... force coefficient decrease amplitude empirical formula reservoir characterization coefficient square pontoon internal solitary wave morison Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023...

... heave rao design draft empirical formula optimized moonpool st sloshing-mode natural frequency ABSTRACT Moonpools are vertical openings applied on the marine ships and offshore platforms to lower the equipment into the sea. The arrangement of moonpool configuration has notable influence...

... decreased gradually with the increase of Reynolds number. The net drag coefficients calculated with the mentioned empirical formula showed overestimated predictions for almost considered nets. Based on above researches, a new calculation formula was proposed, which could provide a better estimate...

... of IG waves. An empirical formula to estimate IG wave heights is developed, based on the local swell waves properties. INTRODUCTION Infragravity (hereafter IG) waves play an important role in nearshore dynamic processes and ship motions in the port. The generation of IG waves is closely related...

..., and sliding force (Valanto P, 2001). In order to investigate the mechanism of ice resistance in depth, experimental and numerical means are indispensable. Model tests in level ice and pre-sawn ice were carried out in the ice basin of Korea Institute of Marine Engineering (KRISO), and the empirical formula...

... experiment artificial mattress drag force coefficient upstream oil & gas boundary layer subsea system bed surface experimental data concrete block engineering shear stress hydrodynamic drag prism empirical formula measurement method wave flume force-measuring zone rough...

... riprap and complex flow situation in the construction site, various empirical or semi-empirical formulas have been developed to estimate the drift distance of underwater riprap in previous researches. With the average velocity and average settlement velocity as the parameters of a simplified drifting...

... tunnel element xue-gang wang formula tunnel element empirical formula resistance coefficient towing water resistance coefficient wave encounter angle engineering resistance coefficient draught water depth construction transportation china water resistance coefficient...

... ABSTRACT In this paper an empirical formula of slip stress for verification of slip capacity of expansive stressed grouted clamp is proposed. The influence parameters on the slip stress are studied, including the content of expansive agent, the slenderness ratio L/D, the ratio of thickness...

... under different conditions such as different speed, depth, channel width and distance from the center of the ship. The numerical calculation method uses the computational fluid dynamics (CFD) software STAR-CCM+ to solve the Reynolds time-averaged (RANS) equation. The semi-empirical formula method...

... of conveyance waves. formula surf-beat height wave height distribution water depth experiment equation numerical experiment reservoir simulation calculation result experimental formula surf-beat distribution gradient wave height empirical formula reef flat bsq significant wave height...

... different approaches to estimate the ice resistance: analytical methods, numerical simulations, model tests, and using empirical formulas. But a relatively few studies were conducted in oblique condition by using these approaches. In oblique condition, the propulsion direction and the axis of the ship does...

... blast loading. With Fortran program, the characteristics of far-field air blast load are solved, and the results are compared with the empirical formula to verify the algorithm. The computations demonstrate that our methods are stable in maintaining accuracy for simulation in the air blast. Combined...

.... There are three ways to estimate the ice resistance: using a mathematical model, numerical simulation, and using empirical formula. In this paper, empirical formulas are used. The main aim of the study is to develop a computer program (I-RES) for prediction of attainable speed in brash ice and for ice resistance...

... and propagation of earthquake-triggered tsunami in a deep ocean. Through numerical experiments, an empirical formula of tsunami amplitude is proposed for the cases of different fault length-width ratio. At last, the accuracy of the proposed formula is checked by comparing with the DART records of the 2011 Japan...

... results, a more reasonable empirical formula for the propagation pressure PP2 of pipe-in-pipe systems is proposed. finite element model offshore pipeline material property buckle propagation external pressure piping simulation power exponent propagation kyriakide mpa experimental result...

... formula for calculating the ultimate strength of a perforated plate is developed and compared to experimental investigation. stiffener method strength transverse compression perforated plate stiffener cutout edge shear loading loading formula longitudinal compression empirical formula...