我们使用人工边界条件方法来克服这一困难。
We use the artificial boundary condition method to overcome this difficulty.
讨论了求解无限区域内波动方程的人工边界条件问题。
We consider the problem of constructing artificial boundary conditions for the wave equation.
利用简单而方便的直接差分方法构造了两个新的人工边界条件。
Two new boundary conditions are presented directly by a difference approximation.
本文研究双曲型初边值问题基于自然边界归化的人工边界条件及其数值方法。
In this paper, we investigate the artificial boundary conditions and its numerical methods based on natural boundary reduction for hyperbolic initial boundary value problems.
在众多的人工边界条件中，透射边界以其良好的吸收性成为人工边界条件的首选。
Among of many artificial boundary conditions, the transmitting boundary conditions are the best because they can absorb more reflection wave.
采用粘-弹性人工边界条件应用于重力坝的动力响应分析中，解决了波在边界上的反射问题。
Under the viscous-spring artificial boundary condition, the input method of seismis wave from the artificial boundary is compared with that from the surface of the dam foundation, and ther.
第一部分，研究无界外区域双曲型初边值问题基于自然边界归化的人工边界条件及其数值方法。
Part I, the artificial boundary condition and its numerical methods based on natural boundary reduction for hyperbolic initial boundary value problems on unbounded domains is studied.
分析了水利水电等工程中的水力劈裂与人工致裂边界条件的不同。
The boundary condition differences between natural power and artificial driven fracturing in hydraulic and hydroelectric engineering are presented.
研究了粘弹性人工边界上的波动输入方法，给出了粘弹性静-动力统一人工边界上静力边界条件的确定方法；
The wave input method for viscous-spring artificial boundary, calculating method of static boundary conditions on the proposed unifiedboundary and their numerical simulation techniques are studied.
对于长宽比值较大的窄形电极问题，如采用人工边界为矩形的渐近边界条件，将会使计算效率显著提高。
For the electrode with large aspect ratios, the calculation efficiency will be improved rapidly if the rectangular artificial boundary is adopted.
在外边界上统一应用适合于人工源的一阶吸收边界条件来形成边值问题，可减小基于平面波假设造成的人为截断边界的影响。
The first order absorption boundary condition is applied to the outside boundary, which can avoid the error caused by the plane wave assumption.
在外边界上统一应用适合于人工源的一阶吸收边界条件来形成边值问题，可减小基于平面波假设造成的人为截断边界的影响。
The first order absorption boundary condition is applied to the outside boundary, which can avoid the error caused by the plane wave assumption.
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