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A study on fast post-processing massve data of casting numerical simulation on personal computers

A study on fast post-processing massve data of casting numerical simulation on personal computers
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摘要 When castings become complicated and the demands for precision of numerical simulation become higher,the numerical data of casting numerical simulation become more massive.On a general personal computer,these massive numerical data may probably exceed the capacity of available memory,resulting in failure of rendering.Based on the out-of-core technique,this paper proposes a method to effectively utilize external storage and reduce memory usage dramatically,so as to solve the problem of insufficient memory for massive data rendering on general personal computers.Based on this method,a new postprocessor is developed.It is capable to illustrate filling and solidification processes of casting,as well as thermal stess.The new post-processor also provides fast interaction to simulation results.Theoretical analysis as well as several practical examples prove that the memory usage and loading time of the post-processor are independent of the size of the relevant files,but the proportion of the number of cells on surface.Meanwhile,the speed of rendering and fetching of value from the mouse is appreciable,and the demands of real-time and interaction are satisfied. When castings become complicated and the demands for precision of numerical simulation become higher, the numerical data of casting numerical simulation become more massive. On a general personal computer, these massive numerical data may probably exceed the capacity of available memory, resulting in failure of rendering. Based on the out-of-core technique, this paper proposes a method to effectively utilize external storage and reduce memory usage dramatically, so as to solve the problem of insufficient memory for massive data rendering on general personal computers. Based on this method, a new post- processor is developed. It is capable to illustrate filling and solidification processes of casting, as well as thermal stess. The new post-processor also provides fast interaction to simulation results. Theoretical analysis as well as several practical examples prove that the memory usage and loading time of the post-processor are independent of the size of the relevant files, but the proportion of the number of cells on surface. Meanwhile, the speed of rendering and fetching of value from the mouse is appreciable, and the demands of real-time and interaction are satisfied.
作者 Chen Tao Liao Dunming Pang Shenyong Zhou Jianxin Chen Tao;Liao Dunming;Pang Shenyong;Zhou Jianxin;State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology;
出处 《中国铸造:英文版》 SCIE CAS 2013年第5期321-324,共4页 China Foundry
基金 supported by the New Century Excellent Talents in University(NCET-09-0396) the National Science&Technology Key Projects of Numerical Control(2012ZX04014-031) the Natural Science Foundation of Hubei Province(2011CDB279) the Foundation for Innovative Research Groups of the Natural Science Foundation of Hubei Province,China(2010CDA067)
casting numerical simulation massive data fast post-processing
作者简介 Liao Dunming Male, born in 1973, Professor, Ph.D. His research interest mainly focuses on casting process simulation, especially on casting stress simulation and casting process CAD. E-mail: liaodunming@mail.hust.edu.cn
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参考文献7

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