The main objective is intended to be the numerical investigation to determine the structure of the real flow in a fixed Savonius wind turbine. A secondary objective of this numerical study will be to obtain the aerodynamic performance of studied wind turbine and also information about velocity field around the rotor.

Numerical study of flow through a Savonius wind turbine

The student has to build the physical model of a race car suitable for the aerodynamic tunnel of the laboratory. Finally the student has to measure the aerodynamic force on the race car.

Experimental sttudy of the aerodynamic force on a race car

The new capability has been added as the numerical method for modeling volumeless and thin rigid bodies to the direct forcing immersed boundary (DFIB) method. The DFIB approach is based on adding a virtual force to the Navier–Stokes equations of incompressible flow to account for the interaction between the fluid and structures. The volume of a solid function (VOS) identifies the stationary or moving solid structures in a given fluid domain. A new VOS‐based algorithm was developed to identify thin, rigid structure boundary points in fluid flow and ensure that the fluid cannot cross through the boundary of a thin rigid structure while moving or stationary. The DFIB method was first validated in a three‐dimensional (3D) turbulent flow over a circular cylinder. The large‐eddy simulation simulated the turbulent flow scales. The proposed algorithm was tested using a 3D turbulent flow past a stationary and rotating Savonius wind turbine that functions as a thin, rigid body. The validation results showed that the selected DFIB approach, combined with the novel algorithm, could simulate a thin, volumeless, rigid structure that is stationary and rotating in incompressible turbulent flows. The current method is also applicable for two‐way fluid‐structure interaction problems.

Numerical modeling of flow past a volumeless and thin rigid body using direct forcing immersed boundary method

The main objective is intended to be the experimental investigation in wind tunnel to determine the structure of the real flow in a fixed Savonius wind turbine.  A secondary objective of this experimental study will be to obtain the aerodynamic performance of studied wind turbine and also information about velocity field around the rotor.

Eloi Mirambell Masramon

Papers

Experimental study of flow through a Savonius wind turbine