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Publisher DOI: 10.3390/fluids7070243
Title: The influence of characteristic sea state parameters on the accuracy of irregular wave field simulations of different complexity
Language: English
Authors: Lünser, Helene 
Hartmann, Moritz Cornelius Nikolaus  
Desmars, Nicolas 
Behrendt, Jasper 
Hoffmann, Norbert  
Klein, Marco  
Keywords: ocean waves; nonlinear waves; potential flow theory; high-order spectral method; wave tank experiments; digital twin for wave experiments
Issue Date: 15-Jul-2022
Publisher: Multidisciplinary Digital Publishing Institute
Source: Fluids 7 (7): 243 (2022)
Abstract (english): 
The accurate description of the complex genesis and evolution of ocean waves, as well as the associated kinematics and dynamics is indispensable for the design of offshore structures and the assessment of marine operations. In the majority of cases, the water-wave problem is reduced to potential flow theory on a somehow simplified level. However, the nonlinear terms in the surface boundary conditions and the fact that they must be fulfilled on the unknown water surface make the boundary value problem considerably complex. Hereby, the contrary objectives with respect to a very accurate representation of reality and numerical efficiency must be balanced wisely. This paper investigates the influence of characteristic sea state parameters on the accuracy of irregular wave field simulations of different complexity. For this purpose, the high-order spectral method was applied and the underlying Taylor series expansion was truncated at different orders so that numerical simulations of different complexity can be investigated. It is shown that, for specific characteristic sea state parameters, the boundary value problem can be significantly reduced while providing sufficient accuracy.
DOI: 10.15480/882.4508
ISSN: 2311-5521
Journal: Fluids 
Other Identifiers: doi: 10.3390/fluids7070243
Institute: Konstruktion und Festigkeit von Schiffen M-10 
Strukturdynamik M-14 
Document Type: Article
Project: Echtzeitprognose der Bewegung von Offshore-Strukturen im Seegang; Nichtlineare Prognose von Seegang und Strukturbewegung, Wellenableitung und Implementierung 
Funded by: Bundesministerium für Wirtschaft und Klimaschutz (BMWK) 
Project Management Jülich (PtJ)
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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