科研之友
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摘要
In order to accurately describe the geothermal field within a basin, it is necessary to divide it into the normal geothermal field and additional geothermal field. For the accuracy by describing of the additional geothermal field, grids need to be increased. Traditional unequal interval difference method can be used to solve this problem, which has to increase grids within the unnecessary area, so as to make the calculated amount larger. Moreover, the calculation cannot be operated by the computer when there are several anomalous areas. This paper has solved simple difference method by focusing on local grids increased by introducing the method of virtual points. The comparison and analysis of the method show clearly that its precision is within a reasonable error range, whereas the calculation amount decreases obviously. The application of this method into the paleo-thermal field simulation in Dongying Depression, Shandong Province, China is effective in the hybrid simulation of the multiple scales geothermal field model within this area successfully. [Received: March 19, 2011; Accepted: November 9, 2011]
- 出版日期2013
- 单位中国科学院武汉物理与数学研究所; 中国地质大学（北京）; 东华理工大学
