全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Yirang Yuan , Tongjun Sun
来源:[J].Journal of Scientific Computing(IF 1.71), 2017, Vol.72 (2), pp.467-499Springer
摘要:A nonlinear system with boundary-initial value conditions of convection–diffusion partial differential equations is presented to describe incompressible nuclear waste disposal contamination in porous media. The flow pressure is determined by an elliptic equation, the concent...
作者:Yirang Yuan
来源:[J].Chinese Science Bulletin(IF 1.319), 2000, Vol.45 (2), pp.125-131Springer
摘要:Abstract(#br)The mathematical model of the semiconductor device of heat conduction has been described by a system of four equations. The optimal order estimates in L 2 norm are derived for the error in the approximates solution, putting forward a kind of characteristic finite dif...
作者:Yirang Yuan , Ming Cui ...
来源:[J].Applied Mathematics and Computation(IF 1.349), 2019, Vol.362Elsevier
摘要:Abstract(#br)Groundwater pollution is an important topic of environmental sciences. Since the geologic structure is usually of crack-hole binary medium, its mathematical model is formulated by a nonlinear initial-boundary value problem of partial differential equations. The press...
作者:Yirang Yuan , Changfeng Li , Huailing Song
来源:[J].Journal of Computational and Applied Mathematics(IF 0.989), 2020, Vol.370Elsevier
摘要:Abstract(#br)A fundamental topic in numerical simulation of two-phase displacement is discussed in this paper. The mathematical model for the compressible problem is defined mainly by two nonlinear partial differential equations: a parabolic equation for the pressure and a c...
作者:Yirang YUAN
来源:[J].Acta Mathematica Scientia(IF 0.487), 2017, Vol.37 (1), pp.259-279Elsevier
摘要:Abstract(#br)Transient behavior of three-dimensional semiconductor device with heat conduction is described by a coupled mathematical system of four quasi-linear partial differential equations with initial-boundary value conditions. The electric potential is defined by an ellipti...
作者:Yirang Yuan , Tongjun Sun ...
来源:[J].Journal of Computational and Applied Mathematics(IF 0.989), 2018, Vol.340, pp.404-419Elsevier
摘要:Abstract(#br)As the basic of numerical simulation of energy science, the displacement of three-dimensional oil–water two phase in porous media is discussed in this paper. For incompressible miscible displacement, the pressure is described by a flow equation in an elliptic ma...
作者:Yirang YUAN , Aijie CHENG , Dangping YANG
来源:[J].Acta Mathematica Scientia(IF 0.487), 2018, Vol.38 (2), pp.519-545Elsevier
摘要:Abstract(#br)The physical model is described by a seepage coupled system for simulating numerically three-dimensional chemical oil recovery, whose mathematical description includes three equations to interpret main concepts. The pressure equation is a nonlinear parabolic equation...
作者:Changfeng Li , Yirang Yuan , Huailing Song
来源:[J].Journal of Computational and Applied Mathematics(IF 0.989), 2019, Vol.356, pp.164-181Elsevier
摘要:Abstract(#br)In this paper the authors discuss a numerical simulation problem of three-dimensional contamination treatment from nuclear waste. The mathematical model is defined by a nonlinear system of an initial–boundary problem of four partial differential equations: an el...
作者:Yirang Yuan , Yunxin Liu ...
来源:[J].Applied Mathematics and Computation(IF 1.349), 2016, Vol.279, pp.1-15Elsevier
摘要:Abstract(#br)A finite difference scheme on block-centered method is presented on nonuniform partition to simulate numerically three-dimensional transient problems of semiconductor detector of photoconduction. Applying the method of mixed finite element, the principle of duality, ...

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