Based On Computational Fluid Dynamics Research And Simulation The Solar Wind

With fast developed of the spatial information technology, atmospheric physics and other subjects, human's exploration of the universe are deeper and deeper, a variety of potential hazards to human beings are gradually emerged in the universe. Solar wind is one of the great harm phenomena of humans but little is known in the universe, it can interfere with human communication, causing geomagnetic storms, the destruction of human space station and so on. China's ChangE lunar exploration program, which brought back a lot of space data and information about the solar wind that will brought great benefit to human's spatial technology. How to use these data to establish the solar wind systems and build the mathematical simulation model is become a major topic of current research and has important scientific significance and application value.The key technology of establishing the solar wind simulation system is the research of the solar wind data and summary of the solar wind's physical characteristics. Combined with magnetic fluid mechanics and astrophysics and other related theory, establish and simulate the real and reliable solar wind motion model is viable. Currently, research on solar wind data made initial progress, but to establish the accuracy of the solar wind mathematical model should overcome many difficulties, the main problem is the scale of the solar wind itself, travel far away and lots of affecting factors. The beginnings of study any science are available through simplified data to conduct basic research. The establishment of ideal conditions of the solar wind movement mathematical model and the solution on computer is the main topics in current solar wind research. The research of the key technologies and related disciplines is imperative. This paper established the solar wind preliminary mathematical model and computer simulation, proposes the application of the current relatively mature computational fluid dynamics-related theory, the transient solar wind body mathematical model, through engineering often collocated grid under the SIMPLE (Semi-Implicit Method for Pressure-Linked Equations) algorithm for Navier-Stokes equations and continuity equation solving, and use of graphics related theoretical knowledge to OGRE graphics engine as the platform, the use of GPU rendering technology, computer rendering and implementation. Although this method can't establish entirely correct mathematical model of the solar wind, and could not obtain a real simulation results, but it presents a preliminary study on the solar wind and simplified simulation method to further study the solar wind for the future system of great guiding significance. Thesis of innovative research results and contributions are as follows:(1) Do the research of solar wind fluid properties.(2) Studied the basis theory of computational fluid dynamics and the SIMPLE series algorithm.(3) Proposed based on computational fluid dynamics model of the solar wind simplified mathematical methods.(4) Do the deep research of OGRE graphics engine, Graphic theory and GPU programming knowledge.(5) Proposes the application of CPU computing mathematical model of the solar wind and GPU rendering collaborative way to accelerate the simulation efficiency.