Example of Sharfetter-Gummel (SG) and Improved SG algorithm

Version 1.0.0.0 (2.28 KB) by Vasily Kozhevnikov
Explains how to use SG and ISG-0 routine for drift-diffusion flux reconstruction FV schemes.
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Updated 18 Mar 2013

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My simple program demostrates how to apply Sharfetter-Gummel and Improved Sharfetter-Gummel procedure to calculate fluxes for convection-diffusion equation. It illustrate example and method from article by A. A. Kulikovsky "A More Accurate Sharfetter-Gummel Algorithm of Electron Transport for Semiconductor and Gas Discharge Simulation" // Journal of Computational Physics, 119, pp.149-155 (155).
Also Method of lines (MOL) for time-discretization and Finite Volume (FV) for spatial flux derivative have exploited.
Feel free to ask any questions.

Cite As

Vasily Kozhevnikov (2026). Example of Sharfetter-Gummel (SG) and Improved SG algorithm (https://uk.mathworks.com/matlabcentral/fileexchange/40844-example-of-sharfetter-gummel-sg-and-improved-sg-algorithm), MATLAB Central File Exchange. Retrieved .

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1.0.0.0