Application of Implicit Finite Difference Method to Determine the 2D Patterns of Unsteady State Thermal Spreading of Geothermal Systems
[摘要] In this study, we built a thermal numerical modelling scheme using finite difference method based on the implicit Crank-Nicholson algorithm. The aim of the study is to describe the process of heat transfer, which is calculated using a thermal diffusion equation (2D vertical) at the unsteady-state conditions, in the geothermal area. The physical parameter used as the input is the thermal diffusivity of the rocks. This parameter was calculated from the other parameters (thermal conductivity, heat capacity, and density). The model was applied to the Wapsalit geothermal area whose geological structure has been known. The model successfully describes the heat flow that spread from the bottom layer to the surface by adjusting to the conditions of the rock.
[发布日期] [发布机构] Department of Physics, Faculty of Mathematics and Natural Sciences, Tanjungpura University, Indonesia^1;Department of Marine Sciences, Faculty of Mathematics and Natural Sciences, Tanjungpura University, Indonesia^2;Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung; 40132, Indonesia^3
[效力级别] 物理学 [学科分类]
[关键词] Geological structures;Geothermal systems;Implicit finite difference method;Physical parameters;Thermal diffusion equations;Thermal numerical modelling;Thermal spreading;Unsteady state conditions [时效性]
