期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：199
期号：3
页码：032044
DOI：10.1088/1755-1315/199/3/032044
语种：English
出版社：IOP Publishing
摘要：The Equivalent Heat Transfer Coefficient Method (EHTCM) is extended to the simulation of transient heat transfer problems for Large-scale concrete aqueducts in the construction process. The present EHTCM consists of the following ingredients: (1) a novel cell death and birth technique is proposed to deal with the existence or nonexistence of the concrete insulation layers, and hence the construction process of aqueducts can be easily simulated; (2) a simplified formula for specific heat transfer is implemented to improve the efficiency of transient computations. Several typical models and examples are selected to verify the performance of this method. On the basis of the weakened weak formulation, the EHTCM is spatially stable and convergent to the exact solution. The EHTCM can achieve the same results in accuracy and convergence rate, in comparison with the actual model method.
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