Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Johannes Palm"'
Autor:
Johannes Palm, Claes Eskilsson
Publikováno v:
International Marine Energy Journal, Vol 5, Iss 3 (2022)
High-fidelity simulations using computational fluid dynamics (CFD) for wave-body interaction are becoming increasingly common and important for wave energy converter (WEC) design. The open source finite volume toolbox OpenFOAM is one of the most freq
Externí odkaz:
https://doaj.org/article/e498a7bb5a4f498bb1ccff7104db71ac
Publikováno v:
International Marine Energy Journal, Vol 5, Iss 1 (2022)
There are many uncertainties associated with the estimation of extreme loads acting on a wave energy converter (WEC). In this study we perform a sensitivity analysis of extreme loads acting on the Uppsala University (UU) WEC concept. The UU WEC consi
Externí odkaz:
https://doaj.org/article/04e76637467549be91ba901fc7e7cc32
Autor:
Johannes Palm, Claes Eskilsson
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 10, p 795 (2020)
Marine cables are primarily designed to support axial loads. The effect of bending stiffness on the cable response is therefore often neglected in numerical analysis. However, in low-tension applications such as umbilical modelling of ROVs or during
Externí odkaz:
https://doaj.org/article/ab0faeca102c434a9a9600e442743f1b
Publikováno v:
Journal of Marine Science and Engineering, Vol 6, Iss 4, p 124 (2018)
This paper analyses the nonlinear forces on a moored point-absorbing wave energy converter (WEC) in resonance at prototype scale (1:1) and at model scale (1:16). Three simulation types were used: Reynolds Averaged Navier–Stokes (RANS), Euler and th
Externí odkaz:
https://doaj.org/article/0fa93637a22a46e2a96c1f28d7bb3596
Publikováno v:
Journal of Marine Science and Engineering, Vol 4, Iss 1, p 5 (2016)
The dynamic response of mooring cables for marine structures is scale-dependent, and perfect dynamic similitude between full-scale prototypes and small-scale physical model tests is difficult to achieve. The best possible scaling is here sought by me
Externí odkaz:
https://doaj.org/article/15347b8f31424bf9984339c597711b8f
Autor:
Claes Eskilsson, Johannes Palm
Publikováno v:
Eskilsson, C & Palm, J 2022, ' High-fidelity modelling of moored marine structures : multi-component simulations and fluid-mooring coupling ', Journal of Ocean Engineering and Marine Energy, vol. 8, no. 4, pp. 513-526 . https://doi.org/10.1007/s40722-022-00263-w
High-fidelity viscous computational fluid dynamics (CFD) models coupled to dynamic mooring models is becoming an established tool for marine wave-body-mooring (WBM) interaction problems. The CFD and the mooring solvers most often communicate by excha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56723ebf64533e2fe74fa5ecead0e7ed
https://vbn.aau.dk/da/publications/0e627024-3858-43dd-a65d-2f87395866c6
https://vbn.aau.dk/da/publications/0e627024-3858-43dd-a65d-2f87395866c6
Autor:
JOHANNES Palm, CLAES Eskilsson
Publikováno v:
The 9th Conference on Computational Methods in Marine Engineering (Marine 2021). 1
Autor:
Eirini Katsidoniotaki, Zahra Shahroozi, Claes Eskilsson, Johannes Palm, Jens Engström, Malin Göteman
Publikováno v:
Katsidoniotaki, E, Shahroozi, Z, Eskilsson, C, Palm, J, Engström, J & Göteman, M 2023, ' Validation of a CFD model for wave energy system dynamics in extreme waves ', Ocean Engineering, vol. 268, 113320 . https://doi.org/10.1016/j.oceaneng.2022.113320
The design of wave energy converters should rely on numerical models that are able to estimate accurately the dynamics and loads in extreme wave conditions. A high-fidelity CFD model of a 1:30 scale point-absorber is developed and validated on experi
Publikováno v:
Volume 9: Ocean Renewable Energy.
Accurate modeling and prediction of extreme loads for survivability is of crucial importance if wave energy is to become commercially viable. The fundamental differences in scale and dynamics from traditional offshore structures, as well as the fact