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《Journal of China University of Metrology》 2011-01
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Identification method of thermal property parameters of porous media based on genetic algorithm

SUN Bin1,ZHOU Hang-xia1,YU Ke-guang2(1.College of Information Engineering,China Jiliang University,Hangzhou 310018,China;2.Modern Education Technology Centre,Zhejiang Water Conservancy and Hydropower College,Hangzhou 310018,China)  
Proposed a new identification method of thermal property parameters of porous media based on genetic algorithm(GA).The selection of initial condition,fitness value and end condition was proved by this method.The mean-square deviation of population was used to detect the oneness.Keeping the best individual,the diversity of population and skipping the local best point achieved the goal of parameters identification.Measuring results indicated that the maximum relative error of inverting parameters to the simulated data was 0.159%,the average error of actual measurement temperature and theoretical arithmetic temperature to the sample was 0.046 ℃.This method has good identification ability to thermo properties parameters of porous media and it is parameters identification method with good accuracy and reliability.
【Fund】: 国家863计划项目(No.2008AA09Z303);; 浙江省水利厅科技项目(No.RC0835)
【CateGory Index】: TP18
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