초록

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Abstract ▼ AI-Helper

This is a comparative study on applications of finite analytic method (FAM) and finite difference method (FDM) to rectangular smalI basin circulation. To do such a comparison, the circulation model in small rectangular basin is established using FAM and the nurmerical solution from the FAM model is ...

This is a comparative study on applications of finite analytic method (FAM) and finite difference method (FDM) to rectangular smalI basin circulation. To do such a comparison, the circulation model in small rectangular basin is established using FAM and the nurmerical solution from the FAM model is compared with that from the FDM model. As the grid size approaches Von Neumann stablity condition, the convergence time to steady state increases in Askren's model, but does not increase in finite analytic model. Especially in the FAM model, the numerical solution converges stably even in the grid size range beyond the stablity condition whereas that diverges in the FDM model. In the case of large basin Reynolds number, it is found that steady state solution is obtained in the FAM model with smaller calculating steps than those of in the FDM model.