ISSN:
0332-1649
Quelle:
Emerald Fulltext Archive Database 1994-2005
Thema:
Elektrotechnik, Elektronik, Nachrichtentechnik
,
Mathematik
Notizen:
In this paper, we solve by a finite difference upwinded method an extended hydrodynamic model for semiconductors, with viscous terms in the momentum equation. In particular, we consider the simulation of a one-dimensional n+-n?-n+ diode, whose solution exhibits at low temperatures strong discontinuities, and investigate the effect of the momentum viscosity on the shock waves. Numerical experiments, performed also on a two-dimensional test case, demonstrate that the numerical scheme, working on non-uniform grids, is suitable to describe solutions with strong variations in time and space. Well-posedness for the boundary conditions is discussed, and a linear stability estimate is established for the one-dimensional n+-n?-n+ diode benchmark problem.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1108/03321640310459171
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