【摘 要】
：
For the three-dimensional nonlinear two-phase displacement problem, the modified upwind finite difference fractional steps schemes were put forward. Some techni
【机 构】
：
Institute of Mathematics
【基金项目】
：
教育部高等学校博士学科点专项科研基金;国家自然科学基金;国家重点基础研究发展计划(973计划);the National Tackling Key Problems Program
论文部分内容阅读
For the three-dimensional nonlinear two-phase displacement problem, the modified upwind finite difference fractional steps schemes were put forward. Some techniques, such as calculus of variations, induction hypothesis, decomposition of high order difference operators, the theory of prior estimates and techniques were used. Optimal order estimates were derived for the error in the approximation solution. These methods have been successfully used to predict the consequences of seawater intrusion and protection projects.
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