CgWind [electronic resource] : A high-order accurate simulation tool for wind turbines and wind farms

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.45 Wind engines
• Thông tin xuất bản: Livermore, Calif : Oak Ridge, Tenn. : Lawrence Livermore National Laboratory ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2010
• Mô tả vật lý: Size: PDF-file: 10 pages
• Bộ sưu tập: Metadata
• ID: 259587
• Chủ đề: 1. 17 wind energy; 2. 99 general and miscellaneous; 3. Algorithms; 4. Engineers; 5. Factorization

Tóm tắt

CgWind is a high-fidelity large eddy simulation (LES) tool designed to meet the modeling needs of wind turbine and wind park engineers. This tool combines several advanced computational technologies in order to model accurately the complex and dynamic nature of wind energy applications. The composite grid approach provides high-quality structured grids for the efficient implementation of high-order accurate discretizations of the incompressible Navier-Stokes equations. Composite grids also provide a natural mechanism for modeling bodies in relative motion and complex geometry. Advanced algorithms such as matrix-free multigrid, compact discretizations and approximate factorization will allow CgWind to perform highly resolved calculations efficiently on a wide class of computing resources. Also in development are nonlinear LES subgrid-scale models required to simulate the many interacting scales present in large wind turbine applications. This paper outlines our approach, the current status of CgWind and future development plans.