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Zahra Mortazavinia,Ricardo Camarero,Francois Guibault 한국유체기계학회 2018 International journal of fluid machinery and syste Vol.11 No.3
Two-way Fluid-Structure Interaction of a three dimensional hydrofoil subjected to viscous flow at Re=750000 is investigated in this paper. A rectangular, cantilevered NACA66 hydrofoil is simulated using a finite element based CSD code, while the fluid flow is modeled with the incompressible, unsteady Reynolds Averaged Navier-Stokes equations using a finite volume based CFD code. The numerical computations are carried out through a strong coupling between these two separate solvers. The strongly coupled FSI solver is validated by comparing the present numerical results with experimental measurements in a water tunnel at the French Naval Academy. To quantify the FSI effects, rigid (stainless steel) and flexible (POM Poly-acetate) hydrofoils with the same undeformed geometry are simulated and compared.
Unstructured Grid Smoothing for Turbomachinery Applications
Mehdi Falsafioon,Sina Arabi,Ricardo Camarero,Francois Guibault 한국유체기계학회 2017 International journal of fluid machinery and syste Vol.10 No.4
In the present study, two mesh smoothing techniques, Laplace and Winslow smoothing techniques, for unstructured grids on turbomachinery application are investigated. These operators are based on the solution of elliptic equations. In the first case, Laplace`s equations are solved using a barycentric averaging procedure. Solution of Winslow`s equations has been a challenging work for unstructured grids because of existence of cross derivative terms in the equations. This issue is addressed devising a local control volume. Both methods are compared using different grid quality criteria. Finally, these operators have been applied to turbomachinery configurations and the advantages and disadvantages are discussed.
Unstructured Grid Smoothing for Turbomachinery Applications
Falsafioon, Mehdi,Arabi, Sina,Camarero, Ricardo,Guibault, Francois Korean Society for Fluid machinery 2017 International journal of fluid machinery and syste Vol.10 No.4
In the present study, two mesh smoothing techniques, Laplace and Winslow smoothing techniques, for unstructured grids on turbomachinery application are investigated. These operators are based on the solution of elliptic equations. In the first case, Laplace's equations are solved using a barycentric averaging procedure. Solution of Winslow's equations has been a challenging work for unstructured grids because of existence of cross derivative terms in the equations. This issue is addressed devising a local control volume. Both methods are compared using different grid quality criteria. Finally, these operators have been applied to turbomachinery configurations and the advantages and disadvantages are discussed.