Turbine CFD Grid Generation

The thesis studies multifarious methods of structured and unstructured grid generation, and empolders their software procedure,and tests those procedures'dependability by examples. On the base of the methods, structured and unstructured grids are generated near the vane of turbine.Structured grid generation includes algebraic and partial differential equation method. The thesis studies those methods'detail by software empolder technique in detail, and analyzes process of procedure, and achieves procedure module of those methods, at the same time, and analyzes the two methods'range of dealing with question and difficult degree of procedure to carry out, and evaluates grid quality, and provides measure of grid generation methods'choice for high quality grid near turbine.Unstructured grid generation includes Delaunay triangulation method and Advancing front technique. The thesis comprehensive studies detail and process of software empolder technique in Delaunay triangulation, and introduces some geometry parameter in order to improve the technique, and puts forward parameter standard of evaluating grid quality and the method of grid optimize, and provides some technique means of quickening high quality grid generation, and constructs efficient and reasonable data structure in procedure design, on the base of them, and accomplishes procedure module of grid generation near turbine by Delaunay triangulation method.