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Developing an Extended Virtual Blade Model for Efficient Numerical Modeling of Wind and Tidal Farms

Soheil Radfar (), Bijan Kianoush, Meysam Majidi Nezhad and Mehdi Neshat
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Soheil Radfar: Department of Civil and Environmental Engineering, Tarbiat Modares University, Tehran 14117-13116, Iran
Bijan Kianoush: Faculty of Civil Engineering, Khaje Nasir Toosi University of Technology, Tehran 19967-15433, Iran
Meysam Majidi Nezhad: Department of Astronautics, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, 00184 Roma, Italy
Mehdi Neshat: Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, NSW 2007, Australia

Sustainability, 2022, vol. 14, issue 21, 1-17

Abstract: Harnessing renewable and clean energy resources from winds and tides are promising technologies to alter the high level of consumption of traditional energy resources because of their great global potential. In this regard, developing farms with multiple energy converters is of great interest due to the skyrocketing demand for sustainable energy resources. However, the numerical simulation of these farms during the planning phase might pose challenges, the most significant of which is the computational cost. One of the most well-known approaches to resolve this concern is to use the virtual blade model (VBM). VBM is the implementation of the blade element model (BEM). This was done by coupling the blade element momentum theory equations to simulate rotor operation with the Reynolds averaged Navier–Stokes (RANS) equation to simulate rotor wake and the turbulent flow field around it. The exclusion of the actual geometry of blades enables a lower computational cost. Additionally, due to simplifications in the meshing procedure, VBM is easier to set up than the models that consider the actual geometry of blades. One of the main unaddressed limitations of the VBM code is the constraint of modeling up to 10 renewable energy converters within one computational domain. This paper provides a detailed and well-documented general methodology to develop a virtual blade model for the simulation of 10-plus converters within one computational domain to remove the limitation of this widely used and robust code. The extended code is validated for both the single- and multi-converter scenarios. It is strongly believed that the technical contribution of this paper, combined with the current advancement of available computational resources and hardware, can open the gates to simulate farms with any desired number of wind or tidal energy converters, and, accordingly, secure the sustainability and feasibility of clean energies.

Keywords: virtual blade model; code extension; CFD modeling; clean and renewable energy; wind and tidal farms (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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