... and automatically get the optimal design plan (Campana, 2006; Cheng et al., 2018; Harries et al., 2019; Yu et al., 2019; Ichinose and Taniguchi, 2022). An automated SBD needs to integrate a parametric molder, a hydrodynamic performance solver, and an optimization algorithm. 2 7 2022 9 2 2023 9 2...

... the message passing interface algorithm and open multiprocessing algorithm. The Navier– Stokes equations are solved using the projection method. A high-order finite difference method, the CIP method, is applied for the convection term. In a volume of fluid method, the tangent of hyperbola for interface...

...Zhiyuan Jiang; Peng Li; Hongde Qin; Yu Guo _ This study considers the hydrodynamic characteristics of an AUV (autonomous underwater vehicle) near an uneven seabed. An improved hydrodynamic algorithm based on conformal mapping and the boundary element method (BEM) is proposed in this paper...

... breakwater time sery polar engineering amplitude dissipation wavemaker algorithm equation numerical study International Journal of Offshore and Polar Engineering (ISSN 1053-5381) Copyright © by The International Society of Offshore and Polar Engineers Vol. 33, No. 1, March 2023, pp. 62 70...

...) methods to oceanographic data. The Barents Sea is the region of our interest, and we focus on the analysis of wind waves and surface currents. We applied several ML models to simulate observed time series and obtained short- and long-term forecasts. The Long Short Time Memory model and XGBoost algorithms...

...Xiao Lang; Da Wu; Wengang Mao _ This paper proposes a machine learning–based ship speed over a ground prediction model, driven by the eXtreme Gradient Boosting (XGBoost) algorithm. The data set is acquired from a world-sailing chemical tanker with five years of full-scale measurements. The model...

... engineering applications (Gopinath and Dwarakish, 2015). artificial intelligence elevation prediction prediction accuracy sery wind energy spectrum engineering application neural network machine learning international journal wave prediction machine learning model polar engineering algorithm...

..., and the microbubbles are modeled as Lagrange points. Special algorithms are designed to realize a smooth transformation between two frameworks. Results indicate that satisfactory multiscale two-phase flow capture accuracy can be achieved with high efficiency by using the new method. Introduction Although computational...

... learning machine (ELM) algorithm. Using the effective input parameters, eight ELM models were developed to predict the seabed response to ice gouging. The superior ELM models and the most significant input parameters were identified by performing a sensitivity analysis. The developed ELM models well...

... the desired optimal control force. The voltage supply to the MR damper is obtained using four well-established control algorithms (Passive-on, Passive-off, Direct control, and Clipped optimal), and their efficiency in response control of ALP is discussed. It is observed that the Passive-on works better than...

... approaches, which use a predefined grid to describe possible ship movements, the proposed algorithm is cell-free and extends the method of isochrones. All calculations of isochrone propagation are done using geo-algorithms and operations with geo-polygons. This allows us to use a standard vector ice data...

... algorithm tank enganabound Chen equation trefftz method International Journal of Offshore and Polar Engineering (ISSN 1053-5381) httpwww.isope.org/publications/publications.htm Copyright © by The International Society of Offshore and Polar Engineers Vol. 29, No. 1, March 2019, pp. 42 52...

..., respectively (Chung and Ooi, 2011). However, the computational time step of these coupled methods must be considered to improve efficiency of the algorithm. In the DEM simulations, the explicit central difference method requires a very small time step to ensure computational stability. On the other hand...

...Jai Ram Saripilli; Debabrata Sen The present work describes the development of an approach to study the problem of ship motions coupled with internal sloshing effects. A hybrid solution algorithm is developed that integrates a three-dimensional potential flow solver for ship motions into a viscous...

...Xin Liu; Songdong Shao; Pengzhi Lin; Soon Keat Tan In this paper, we provide a hybrid incompressible smoothed particle hydrodynamics (ISPH) model for fluid-structure interactions. The numerical algorithms include the mirroring treatment of solid boundaries, free-surface tracking, wave damping using...

...Hamid Rezaei; Mohammad Javad Ketabdari In this paper, a new algorithm was proposed for the 2D coupling of the Volume of Fluid (VOF) and Level Set (LS) methods, which was used for the computation of free surface tracking. This method was also coupled with the second-order advection solution...

... FPSO controller Simulation hull algorithm interaction contact surface polygon ice edge Lindqvist ship hull level ice resistance numerical simulation ship-fixed frame Scenario International Journal of Offshore and Polar Engineering (ISSN 1053-5381) httpwww.isope.org/publications...

... in a 3D fast multipole algorithm. Previous restrictions over the use of the multipole expansion are proven to be unnecessary. Extensive validation is provided by evaluating this function over a large range of parameters. The influence of the fast multipole algorithm parameters on the accuracy...

... 25, 2010. KEY WORDS: Frequency domain, genetic algorithms, irregular waves, optimization, 2-body oscillating system, wave energy. and the surge directions. The sloped IPS buoy has been studied since the mid-1990s at the University of Edinburgh by model test- ing and numerical modelling (Salter...

... of an optimization algorithm, of the optimum adjustment of, in terms of satisfying the design requirements. INTRODUCTION Moored floating breakwaters (MFB) are nowadays considered a viable, environmentally friendly, alternative solution to conventional bottom-fixed structures that can be effectively used...