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The Studies Of Efficient Arithmetic Under Parallel Circumstance In Computational Pattern Combustion Dynamics And Visualization

Posted on:2005-01-11Degree:MasterType:Thesis
Country:ChinaCandidate:S Q HuFull Text:PDF
GTID:2168360155471805Subject:Computer Science and Technology
Abstract/Summary:PDF Full Text Request
The rocket engine is the primary power system of aerospace. To meet the demands for future space research and producing credible liquid rocket engine of our country, the efficient arithmetic under parallel circumstance in computational pattern combustion dynamcis (CPCD) and visualization are studied.Many kinds of arithmetic to solve the System of Linear Equations are studied. TDMA , which can sovle the Tri-Diagonal Martrix quickly and is easy to parallel, is used to solve the CCD controll equations. The complex flow field in liquid rocket engine is numerically simulated under the parallel computational circumstance, and tests done on two kinds of parallel platforms of MPP and CLUSTER show that the program has a high performance. The results show that parallel and distributed method can improve the efficiency of the numerical simulation in liquid rocket engine.Taking aim at the characteristic of CCD, the visualization system based on web is built. People can send the files of scientific computation to the web server through internet with the method of deploying the web application on the internet. The numerical results or the relevant graphics are displayed on the web browser with the help of Matlab.The numerical results of the program are visualized dynamically, and the independent video file is created. The dynamical visualization research in the 3D space verifies the validity of the results, on the other hand the data are presented scientifically and directly.With the method of CPCD and multi-dimension dynamical video analysis, the results of dynamcial visualization are studied. The orbits of pressure, temperature, and density of the high frequency combustion in the liquid rocket engine relative to the stable-state are found to be the spiral and hexagon structure, and the structure is unique and elegant. The visualization results deal with the essentials of further research of the refinable pattern dynamical evolution in the rocket engine.
Keywords/Search Tags:Computational Pattern Combustion Dynamics, Liquid Rocket Engine, Turbulence, Parallel Computation, ViSC
PDF Full Text Request
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