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Analysis and Numerical Simulation Research of the Heating Process in the Oven

Journal of Thermal Science 2016年第5期25卷 454-459页

作者： CHEN Yawei LEI Dingyou School of Traffic and Transportation Engineering Central South University

How to use the oven to bake delicious food is the most concerned problem of the designers and users of the *** this intent,this paper analyzed the heat distribution in the oven based on the basic operation principles and proceeded the data simulation of the temperature distribution on the rack *** the differential equation model of the temperature distribution changes in the pan when the oven works based on the heat radiation and heat transmission,based on the idea of utilizing cellular automation to simulate heat transfer process,used ANSYS software to proceed the numerical simulation analysis to the rectangular,round-cornered rectangular,elliptical and circular pans and giving out the instantaneous temperature distribution of the corresponding shapes of the *** temperature distribution of the rectangular and circular pans proves that the product gets overcooked easily at the corners and edges of rectangular pans but not of a round pan.

关键词： Numerical simulation Heat radiation Temperature distribution cellular automation

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维普期刊数据库

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cellular automata modelling of phase-change memories

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Journal of University of Science and Technology Beijing 2008年第4期15卷 444-450页

作者： Wanhua Yu David Wright School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China School of Engineering Computer Science and Mathematics The University of Exeter Exeter EX4 4QF UK

A novel approach to modelling phase-transition processes in phase change materials used for optical and electrical data storage applications is presented. The model is based on a cellular automaton （CA） approach to predict crystallization behaviour that is linked to thermal and electrical simulations to enable the study of the data writing and erasing processes. The CA approach is shown to be able to predict the evolution of the microstructure during the rapid heating and cooling cycles pertinent to data storage technology, and maps crystallization behaviour on the nanoscale. A simple example based on possible future nonvolatile phase-change random access solid-state memory is presented.

关键词： crystallization bchaviour cellular automation computer simulation memory data storage modelling phase change

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维普期刊数据库

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Analysis of 13Cr bloom solidification structure using CA-FE model

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Journal of Central South University 2016年第1期23卷 10-17页

作者：翟莹莹马北越厉英姜正义 School of Materials and Metallurgy Northeastern University School of Mechanical Materials and Mechatronic EngineeringUniversity of Wollongong

Solidification structure is critical in the control of the mechanical properties and quality during the continuous casting process. The thermo-physical properties of 13 Cr steel added some rare metals, such as Mo, V, Nb, are measured to better understand the solidification structure of 13 Cr bloom. A computational model using CA-FE(cellular automation-finite element) method coupled with heat transfer model is developed to describe the solidification structure in continuous casting process. It is found that the calculated solidification structure is in good agreement with the observed data. The influence of casting speed and superheat on the solidification structure of the bloom is studied in detail. In order to obtain more equiaxed crystal ratio and low degree of the segregation in the bloom, the optimized casting speed 0.6 m/min and superheat less than 25 °C are determined for the caster. Using the optimized manufacturing parameters, these samples are 60% with the equiaxed zone ratio of 8%–10% and below the degree of segregation 1.05.

关键词： cellular automation solidification structure equiaxed crystal ratio bloom continuous casting

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维普期刊数据库

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