Turbine as a Case Study

摘要: In this paper, the authors present a comparison between ANSYS Workbench and Gambit meshing tools for the numerical modeling. During this work, H-rotor Darrieus turbine is used as a case study. The study performs on three-bladed turbine with S1046 airfoil section of solidity equal to 0.1 and a complete campaign of 2-D simulations. The unsteady simulations performed for different tip speed ratios and based on URANS turbulent calculations using a sliding mesh approach and employing different two equation turbulence models in ANSYS fluent. The objective is to verify if the accuracy of the simulations based on Gambit meshing is significantly better than simulations based on ANSYS meshes in finite volume analysis. The results show that the accuracy of ANSYS Workbench meshing is improved by using SST K-omega turbulence models for rotating zones but it is not recommended for other turbulence models which work in the rotating zone.