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Solution precision of concrete temperature fields with finite difference method 被引量:1

Solution precision of concrete temperature fields with finite difference method
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摘要 With the finite difference method to calculate the temperature distribution in mass concrete structures, the solution precision will increase with a smaller step size, at the cost of computational time. In view of the basic characteristics of the finite difference method, a simple yet powerful improvement is introduced. By multiplying the adiabatic temperature function with a correction factor, the precision of the solution can be assured without an increase in the computation time. In addition, the correction rules for three types of commonly used concrete hydration formulas are investigated. With the finite difference method to calculate the temperature distribution in mass concrete structures, the solution precision will increase with a smaller step size, at the cost of computational time. In view of the basic characteristics of the finite difference method, a simple yet powerful improvement is introduced. By multiplying the adiabatic temperature function with a correction factor, the precision of the solution can be assured without an increase in the computation time. In addition, the correction rules for three types of commonly used concrete hydration formulas are investigated.
出处 《Journal of Shanghai University(English Edition)》 CAS 2008年第4期302-305,共4页 上海大学学报(英文版)
基金 the Shanghai Excellent Young Professor Candidate Program (Grant No.04YQHB139)
关键词 concrete structure temperature field finite difference method HYDRATION concrete structure, temperature field, finite difference method, hydration
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