finite difference equation meaning in English
有限差分方程
Examples
- The text is detailed to study the deducing process of the nodal finite difference equation , and to study its application hi the rock mass engineering problems
本文详细研究了节点有限差分运动方程的推导过程，以及在岩土工程问题中的应用。 - It is well known that the integral and finite difference inequalities play a fundamental role in the development of the theory of differential and finite difference equations
积分不等式和离散不等式在研究微分方程与有限差分方程理论过程中具有非常重要的作用。 - Thus , non - negative property is suggested as the criterion of stability . furthef , diffusion coefficient is replaced by an artificial one in the finite difference equation to simulate the entropy generation can improve the accuracy of the numerical analysis
在尽可能满足对流扩散过程数值格式中的输运性或守恒性及稳定性的同时，以扩散熵产仿真为原则的伪扩散系数可有效地提高数值模拟的仿真性，为数值计算中扩散系数的修正提供了一种有效的手段。 - ( 2 ) the explicit simulating process for the pulse combustion spray drying process in this project , both the gas - phase equations and particle - phase equations were integrated in the computational cell using up - wild scheme to obtain the finite difference equations . the gas - phase equations are solved using the simpler algorithm and multiple iterations have been made based on a two - way coupling ( legaml algorithm )
( 2 )进行了模型的求解本文详细论述了该类数学模型的具体求解过程，包括模拟区域的确定和非结构化网格的划分、边界条件的选择、微分方程的控制容积离散方法、代数方程组的simpler解法以及两相流方程的legami算法。 - When the author sets up the mathematics model with describing the process of two - dimensional debris flow , he develops the continuity equation by the law of conservation of mass and establishes the momentum equations by the law of conservation of momentum . the author makes full use of the advanced computer technologies , establishes the finite difference equation of numerical simulation by the differential operator fission method , and writes programs for computers which contact friendly with the other programs . the parameters are directly input on the keyboard
在泥石流堆积数值模拟方面,作者以前人工作成果为基础,在建立数学模型时,根据质量守恒原理,推导建立了泥石流连续性方程,根据动量守恒原理,推导建立了泥石流运动方程;在数值解法上,充分利用高速发展的计算机技术,采用算子分裂法建立数学模型的差分格式,开放式编制程序,人机对话方式设置参数,计算机程序具有通用性、可扩展性和易维护性。