[1]吴金,刘其贵,樊路加,等.流体动力学模型中流密度方程的二维OAD离散方法[J].东南大学学报(自然科学版),1999,29(6):27-31.[doi:10.3969/j.issn.1001-0505.1999.06.006]
 Wu Jin,Liu Qigui,Fan Lujia,et al.Two Dimensional Optimism Artificial Diffusion Discrete Method for Flux Density in Hydrodynamic Transportation Equations[J].Journal of Southeast University (Natural Science Edition),1999,29(6):27-31.[doi:10.3969/j.issn.1001-0505.1999.06.006]
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流体动力学模型中流密度方程的二维OAD离散方法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
29
期数:
1999年第6期
页码:
27-31
栏目:
电子科学与工程
出版日期:
2000-11-20

文章信息/Info

Title:
Two Dimensional Optimism Artificial Diffusion Discrete Method for Flux Density in Hydrodynamic Transportation Equations
作者:
吴金 刘其贵 樊路加 夏君 杨廉峰 魏同立
东南大学微电子中心,南京 210096
Author(s):
Wu Jin Liu Qigui Fan Lujia Xia Jun Yang Lianfeng Wei Tongli
Microelectronic Center, Southeast University, Nanjing 210096
关键词:
SG OAD 离散 侧风效应 流密度
Keywords:
SG OAD discretization crosswind diffusion effect flux density equation
分类号:
TN302
DOI:
10.3969/j.issn.1001-0505.1999.06.006
摘要:
本文系统分析了用于流密度方程有限差分离散的SG和OAD方法,完善了适合于二维非均匀网格系统的流线SG方法.在此基础上,提出了适合流体动力学模型中流密度方程离散的二维OAD方法.简单的数值实验表明,OAD离散方法不仅能够解决数值计算中存在的侧风扩散效应,而且还能大幅度地提高计算过程的收敛速度.
Abstract:
This paper discusses the SG and OAD methods for the discretization of flux density equations, and improve the two-dimensional streamline SG method with non uniform grids, and finally extend it to the OAD method for the discretization of the hydrodynamic model. Simple numerical tests demonstrates that OAD method can minimize the upwind diffusion effect and fasten the convergence rate in numerical calculation.

参考文献/References:

[1] Scharfetter D L,Gummel H K.Large signal analysis of a silicon read diode oscillator.IEEE Trans on Electron Devices,1969,16(1):64~77
[2] Tang Tingwei,Ieong M K.Discretization of flux densities in device simulations using optimum artificial diffusivity.IEEE Trans CAD,1995,14(11):1309~1315
[3] Brooks A N,Hughes T J R.Streamline upwind/Petrov Galerkin formulation for convection dominated flows with particular emphasis on the incompressible Navier-Stocks equation.Comput Meth Appl Mech Engrg,1982,32:199
[4] He Yie,Teng Zhimeng.Nonoscillatory streamline upwind formulations for drift-diffusion equation.IEEE Trans CAD,1983,12(10):1535~1541

备注/Memo

备注/Memo:
基金项目:国家自然科学基金资助项目(69806002)和江苏省自然科学基金资助项目(BK97006).
第一作者:男,1965年生,博士,副教授.
更新日期/Last Update: 1999-11-20