Study Of The Aerodynamic Optimization Of The Turbine Alternator With Side Intake Ducts For The Fuze

The turbine alternator with side intake ducts for the fuze, one of the important types ofthe fuze power, whose fine stable function characteristic can satisfy power demand ofmodern electricity fuze, has currently become the most important development direction offuze power and has important application value to our serving and studying ammunitionfuze. To cater for the development of fuze power and the demand of modern warfare, inthe present dissertation, the theory and the technology of aerodynamic optimization designof the turbine alternator with side intake ducts for-the fuze was studied in detail.The dissertation builds the finite volume method for solving the compressibleReynolds average Navier-Stokes equations in absolute coordinates and in relative rotatingcoordinates on unstructured meshes; conducts a detailed analysis of Advancing FrontMethod (AFM) which is used to generate 3D unstructured grids; describes the types ofboundary conditions of numeric calculation of 3D flow field of the turbine alternator withside intake ducts for the fuze; and provides an explanation of how to set boundaryconditions. In addition, the 2D airfoil NACA 0012 and 3D ONERA M6 wing arecalculated to verify the above numeric method. The results show calculations match theexperimental results well.In the dissertation, the author conducts a detailed analysis of the method ofaerodynamic optimization design; and puts forward a new method of aerodynamicoptimization design based on the Self-study Response Surface Methodology (SRSM). Thetheory and technology of SRSM, namely design of experiment (DOE), construction ofSRSM and finding optimum of SRSM are lucubrated. Then some representative functionsare chosen to verify the accuracy and adaptability of SRSM. The results show the SRSMhas fine accuracy and adaptability and is able to satisfy the request of aerodynamicoptimization design of the turbine alternator with side intake ducts for the fuze.The dissertation also makes research with aerodynamic optimization design of theintake ducts based on the research of the numeric solving method and aerodynamicoptimization method; Conducts a detailed analysis of the parameterized method andoptimization objective function of the straight and side intake ducts; and carries out theaerodynamic optimization design of two types of the intake ducts.The dissertation gives an in-depth study of the technology which 3D aerodynamicoptimization design involves. In this section of the dissertation, the method and the flow chart of the whole 3D aerodynamic optimization design are analyzed. Then the structure,electromagnetic characteristic, equivalent magnetogram, and equivalent calculation of thehigh-speed permanent magnet aero-synchronous alternators are studied. An iterativemethod of numerical calculation of 3-D flow-field of the turbine alternator with side intakeducts for the fuze is put forward, based on the interaction between flow-field and turbinerotational speed. This method solved the problem caused by the uncertainty of theboundary conditions, and improved the accuracy of numerical simulation ofthree-dimensional flow field of the turbine alternator with side intake ducts for the fuze.The dissertation also carries out the whole 3D aerodynamic optimization design of thealternator with side intake ducts for a certain fuze.The finish of this dissertation has great help for the deeper research of the alternatorwith side intake ducts for the fuze, which is an important type of the fuze power and hasimportant application value to our serving and studying ammunition fuze.