1) partial-node implicit schemes
偏心隐格式
2) eccentric Preissmann scheme
偏心Preissmann格式
3) implicit scheme
隐式格式
1.
In this paper,the multigrid method is presented associated with LUSGS implicit scheme to calculating the low speed flow field around the NLR7301 case#1 and the transonic flow field around the DLRF4 wing-body configuration,all results conf.
本文在多块网格、LUSGS隐式格式基础上采用多重网格技术,计算了NLR7301case#1两段翼型的低速绕流及DLRF4跨声速流场,在复杂二维、三维粘性流场求解中获得了满意的加速收敛效果。
2.
An efficient numerical method that contains the new LU type implicit scheme and the modified fourth order high resolution MUSCL TVD scheme is proposed for solving the compressible Navier Stokes equations.
提出了适用于模拟非定常三维粘性流动问题的数值计算体系，包括高速收敛稳定性好的新的ＬＵ型隐式格式，捕捉弱间断面和滑移面的高精度、高分辨率的改良型ＭＵＳＣＬＴＶＤ格式。
3.
A new implicit scheme based on the LU-SGS scheme in conjunction with diagonalization and Cramer s rule (LUSGS-DC) has been developed for solving the compressibleNavier-Stokes equations.
发展了一种新的ＬＵ型隐式格式。
4) implicit scheme
全隐格式
1.
Based on one example, the influences of the time step or grid step on the accuracy of the calculation results of the air flow distrbution numerical simulation in the implicit scheme was discussed and analyzed to acquire the agreeable calculation results,the author's idea has been presented with the analysis.
以一实例探讨了非恒定气流组织数值模拟全隐格式中的时间步长与网格步长对计算结果精度的影响,分析了原因,提出了有关使计算结果更接近实际要求的见解。
5) implicit scheme
隐格式
1.
Two level and absolutely stable full-node implicit schemes for dispersive equation
色散方程两层绝对稳定的实心隐格式
2.
An implicit scheme for the lattice Boltzmann method is presented in the paper.
提出了一种新的隐格式格子Boltzmann模型,在模型中,隐格式可以显格式求解格子Boltzmann方程,计算简单,并且引入了参数θ与无量纲时间τ独立,增加了模型的灵活性。
3.
The present paper deals with the explicit and the implicit schemes of a two-dimensional diffusion model of water pollution, and the consistency, the stability and the convergence of the schemes.
分析水污染传播问题二维数学模型的两种计算格式 :显格式和隐格式 ;证明其相容性、稳定性和收敛性 。
6) implicit difference scheme
隐格式
1.
This paper constructs an implicit difference scheme of 45 degree one-wave equation,and it is solved with semi-implicit method.
构造了二维45°上行波方程的一种差分格式,该差分格式是隐格式但却是半隐式求解,利用此差分格式求偏移问题数值解时,既保证了算法的稳定性,又使得运算量大大减少。
2.
This paper constructs an implicit difference scheme of 45 degree one-wave equation, and it is solved with semi-implicit method.
该差分格式是隐格式,但却是半隐式求解。
3.
This paper constructs an implicit difference scheme of 45 degree upgoing wave equation, and it is solved with semiimplicit method.
构造了三维 45°上行波方程的一种差分格式 ,该差分格式是隐格式但却是半隐式求解 。
补充资料：在AutoCAD中偏心圆锥与偏心圆台实体的画法
现在要画一个偏心圆锥,底面在WCS的XY平面上,圆心(0,0,0),半径100,顶点(300,0,400)在ZX平面上.
1)连接PA,PB. A(-100,0,0) B(100,0,0)
图1
在当前坐标下:
2)延长PA到C,使PA=CA;延长PB到D,使PB=DB;
3)连接CD;
4)以CD为直径画圆;
5)用XLINE命令中的二等分选项作角CPD的角平分线PO,交CD于O;
6)过O作CD的垂线,交圆于E,F;
图2
7)用三点UCS命令,取三点为:O,P,C;
8)过点O作PO的垂线GO,交PC于G;
图3
9)再次用三点UCS命令,取三点为O,F,G;
10)现在就可以画椭圆锥了!
cone-e-c-捕捉O点-捕捉F点-捕捉G点-a-捕捉P点;
图4
11)回到WCS,剖切椭圆锥
SL-选择椭圆锥-回车-XY-回车-捕捉P点.
12)删除辅助线条.
图5
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条