Results 1 to 10 of about 13,662,793 (258)

Fast Flapping Aerodynamics Prediction Using a Recurrent Neural Network

open access: yesEngineering Proceedings, 2023
One of the major tasks of aerodynamics is the study of the flow around airfoils. While most conventional methods deal well with steady flows, unsteady airfoils, like the ones on helicopter blades, are subject to such complex dynamic flows that their ...
João A. F. Pereira   +3 more
doaj   +1 more source

A Numerical Study on Hydrodynamic Energy Conversions of OWC-WEC with the Linear Decomposition Method under Irregular Waves

open access: yesEnergies, 2021
A numerical study was performed to investigate the applicability of the linear decomposition method for the hydrodynamic energy conversion of an oscillating-water-column type wave energy converter (OWC-WEC).
Jeong-Seok Kim   +4 more
doaj   +1 more source

Hybrid Lattice-Boltzmann-Potential Flow Simulations of Turbulent Flow around Submerged Structures

open access: yesJournal of Marine Science and Engineering, 2022
We report on the development and validation of a 3D hybrid Lattice Boltzmann Model (LBM), with Large Eddy Simulation (LES), to simulate the interactions of incompressible turbulent flows with ocean structures.
Christopher M. O’Reilly   +4 more
doaj   +1 more source

Accuracy of Potential Flow Methods to Solve Real-time Ship-Tug Interaction Effects within Ship Handling Simulators [PDF]

open access: yesTransNav, 2014
The hydrodynamic interaction effects between two vessels that are significantly different in size operating in close proximity can adversely affect the safety and handling of these vessels. Many ship handling simulator designers implement Potential Flow (
B. Nirman Jayarathne   +3 more
doaj   +1 more source

Comparative Study of Potential Flow and CFD in the Assessment of Seakeeping and Added Resistance of Ships

open access: yesJournal of Marine Science and Engineering, 2023
The need for maritime freight transport of various goods has never been greater. Consequently, ships are designed with ever-increasing dimensions, with the emphasis, of course, on length.
Ivan Sulovsky   +3 more
doaj   +1 more source

Simulation of Nonlinear Free Surface Waves using a Fixed Grid Method [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
The simulation of nonlinear surface waves is of significant importance in safety studies of fluid containers and reservoirs. In this paper, nonlinear free surface flows are simulated using a fixed grid method which employs local exponential basis ...
A. Ebrahimi, B. Boroomand
doaj   +1 more source

Mooring Analysis of a Floating OWC Wave Energy Converter

open access: yesJournal of Marine Science and Engineering, 2021
This investigation focuses on the modelling of a floating oscillating water column (FOWC) wave energy converter with a numerical code (ANSYS AQWA) based on potential flow theory.
Alana Pols   +4 more
doaj   +1 more source

Oscillating Water Column (OWC) Wave Energy Converter Part 1: Fixed OWC

open access: yes한국해양공학회지, 2022
This study reviews the recent development and research results of a fixed oscillating water column (OWC) wave energy converter (WEC). The OWC WEC can be divided into fixed and floating types based on the installation location and movement of the ...
Hyunjai Yang   +2 more
doaj   +1 more source

Unsteady nonlinear panel method with mixed boundary conditions [PDF]

open access: yesFME Transactions, 2021
A new panel method had been developed to account for unsteady nonlinear subsonic flow. Two boundary conditions were used to solve the potential flow about complex configurations of airplanes.
Hamid Ali Anmar
doaj  

Mixed-Fidelity Design Optimization of Hull Form Using CFD and Potential Flow Solvers

open access: yesJournal of Marine Science and Engineering, 2021
The present paper proposes a new mixed-fidelity method to optimize the shape of ships using genetic algorithms (GA) and potential flow codes to evaluate the hydrodynamics of variant hull forms, enhanced by a surrogate model based on an Artificial Neural ...
Gregory J. Grigoropoulos   +3 more
doaj   +1 more source

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