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+34 946 567 842
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+34 946 567 843
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vnava@bcamath.org
Information of interest
- Orcid: 0000-0002-3207-3517
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Adaptive simulation of unsteady flow past the submerged part of a floating wind turbine platform
Jansson, J.; Nava, V.
; Sanchez, M.; Aguirre, G.; de Abreu, R.V.; Hoffman, J.; Villate, J.L. (2015-12-31)
Offshore floating platforms for wind turbines represent challenging concepts for designers trying to combine an optimal compromise between cost effectiveness and performance. Modelling of the hydrodynamic behaviour of the ...
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A comparison of numerical approaches for the design of mooring systems for wave energy converters
Touzon, I.; Nava, V.; de Miguel, B.; Petuya, V. (2020-07-01)
This paper analyses the numerical outcome of applying three different well-known mooring design approaches to a floating wave energy converter, moored by means of four catenary lines. The approaches include: a linearized ...
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Finite Element Simulations of Two-phase Flow and Floating Bodies Using FEniCS-HPC
Moragues, M.; Castanon, D.; Degirmenci, N.C.; Jansson, J.; Nava, V.; Krishnasamy, E.; Hoffman, J. (2018-07)
We present a variational multiscale stabilized finite element method to solve the variable density incompressible Navier-Stokes equations for the simulation of two-phase flow. We introduce a level-set method based on the ...
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Frequency domain modelling of a coupled system of floating structure and mooring Lines: An application to a wave energy converter
Touzon, I.; Nava, V.; Gao, Z.; Petuya, V. (2021-01-15)
Floating structures for single offshore renewable energy devices, i.e. wave energy converters, tend to be significantly smaller than those of the traditional offshore industry and the interaction between floater motions ...
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Hydrodynamic identification of NAUTILUS FOWT platform from small scale tests
Galván, J.; Sánchez-Lara, M.; Garrido-Mendoza, C.; Pérez-Morán, G.; Boulluec, M.L.; Augier, B.; Rodriguez-Arias, R.; Nava, V. (2019)
A small-scale tank test campaign of the NAUTILUS offshore wind floating semisub-mersible platform was held at the Ifremer Deep Water Basin within the framework of the MaRINET 2 project. The support structure consists in ...
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Layout Optimisation of Wave Energy Converter Arrays
Mercadé Ruiz, P.; Nava, V.; Topper, M.B.R.; Ruiz Minguela, P.; Ferri, F.; Kofoed, J.P. (2017-08-24)
This paper proposes an optimisation strategy for the layout design of wave energy converter (WEC) arrays. Optimal layouts are sought so as to maximise the absorbed power given a minimum q-factor, the minimum distance between ...
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Mooring system monitoring of offshore renewable energy floating platforms
Touzon, I.; Garcia-Corcuera, A.; Nava, V.; Rodriguez-Arias, R.; de Miguel, B. (2019)
An appropriate schedule of the operations for the maintenance (both long and short term) of offshore renewable energy devices can be a crucial key factor for assessing the economic viability of marine energy projects. ...
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Numerical Approaches for Loads and Motions Assessment of Floating WECs Moored by Means of Catenary Mooring Systems
Touzon, I.; Petuya, V.; Nava, V.; Alonso-Reig, M.; Mendikoa, I. (2022)
Technologies for harvesting offshore renewable energy based on float- ing platforms, such as offshore wind, wave and tidal energies, are currently being developed with the purpose of achieving a competitive cost of energy. ...
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Numerical investigation of the aerodynamic performance for a wells-type turbine in a wave energy converter
Stipcich, G.; Ramezani, A.; Nava, V.; Touzon, I.; Sanchez-Lara, M.; Remaki, L. (2015-12-31)
Ocean waves constitute an extensive energy resource, whose extraction has been the subject of intense research activity in the last three decades. Among the different variants of Wave Energy Converters, the principle of ...
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A numerical study on the hydrodynamic impact of device slenderness and array size in wave energy farms in realistic wave climates
Penalba, M.; Touzon, I.; Lopez-Mendia, J.; Nava, V. (2017-07-10)
The future of wave energy converters lies in the design and realization of farms comprising of several devices, given the level of actual power flow for the individual devices and because of several operational issues. ...
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On intermediate-scale open-sea experiments on floating offshore structures: Feasibility and application on a spar support for offshore wind turbines
Ruzzo, C.; Fiamma, V.; Collu, M.; Failla, G.; Nava, V.; Arena, F. (2018-06-28)
Experimental investigation of floating structures represents the most direct way for achieving their dynamic identification and it is particularly valuable for relatively new concepts, such as floating supports for offshore ...
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Reducing variability in the cost of energy of ocean energy arrays
Topper, M.B.R.; Nava, V.; Collin, A.J.; Bould, D.; Ferri, F.; Olson, S.S.; Dallmann, A.R.; Roberts, J.D.; Ruiz Minguela, P.; Jeffrey, H.F. (2019-09)
Variability in the predicted cost of energy of an ocean energy converter array is more substantial than for other forms of energy generation, due to the combined stochastic action of weather conditions and failures. If the ...
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Review of systems engineering (Se) methods and their application to wave energy technology development
Ruiz‐minguela, P.; Nava, V.; Hodges, J.; Blanco, J.M. (2020-10-01)
The design of effective and economically viable wave energy devices involves complex decision‐making about the product based on conceptual design information, including stakeholder requirements, functions, components and ...
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Simulation of the HarshLab floating platform for offshore experimentation using FEniCS-HPC
Moragues, M.; Castanon, D.; Jansson, J.; Nava, V.; Krishnasamy, E.; Degirmenci, N.C.; Nguyen, V.D.; Garrido, C.; Sanchez, M.; Rodriguez-Arias, R. (2017)
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Small scale experimental validation of a numerical model of the HarshLab2.0 floating platform coupled with a non-linear lumped mass catenary mooring system
Touzon, I.; Nava, V.; Gao, Z.; Mendikoa, I.; Petuya, V. (2020-03-15)
When focusing on mooring system numerical modelling, the efforts are focused on validating models that increase the accuracy and maintain the computation time under reasonable limits. In this paper an approach for modelling ...
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Technology-Agnostic Assessment of Wave Energy System Capabilities
Ruiz‐minguela, P.; Blanco, J.M.; Nava, V.; Jeffrey, H.F. (2022-04-01)
Developing new wave energy technologies is risky, costly and time-consuming. The large diversity of concepts, components and evaluation criteria creates a vast design space of potentially feasible solutions. This paper ...