Abstract2018-05-24T12:52:58+00:00

Numerical Study of 2D Vertical Axis Wind and Tidal Turbines with a Degree-Adaptive Hybridizable Discontinuous Galerkin Method

Author (s): Montlaur, A.; Giorgiani, G.
Journal: CFD for Wind and Tidal Offshore Turbines,

Pages: 13 – 26
Date: 2015

Abstract:
This work presents a 2D study of vertical axis turbines with application to wind or tidal energy production. On the one hand, a degree-adaptive Hybridizable Discontinuous Galerkin (HDG) method is used to solve this incompressible Navier–Stokes problem. The HDG method allows to drastically reduce the coupled degrees of freedom (DOF) of the computation, seeking for an approximation of the solution that is defined only on the edges of the mesh. The discontinuous character of the solution provides an optimal framework for a degree-adaptive technique. Degree adaptivity further reduces the number of DOF in the HDG computation by means of degree-refining only where more precision is needed. On the other hand, the finite volume method of ANSYS is used to validate and compare the obtained results.

  
  

Bibtex:

@inbook {AVM-GG:15,
        Author = {Adeline Montlaur and Giorgio Giorgiani,
        Title = {Numerical Study of 2{D} Vertical Axis Wind and Tidal Turbines with a Degree-Adaptive Hybridizable Discontinuous {G}alerkin Method},
        Editor = {E.~Ferrer and A.~Montlaur},
        Booktitle = {{CFD} for Wind and Tidal Offshore Turbines},
        Series = {Springer Tracts in Mechanical Engineering},
        Volume = {},
        Publisher = {Springer International Publishing},
        Pages = {13--26},
        Year = {2015},
        Doi = {10.1007/978-3-319-16202-7}
        }