Loading [MathJax]/extensions/TeX/boldsymbol.js
\newcommand{\uex}{{u_{\small\mbox{e}}}}
\newcommand{\Aex}{{A_{\small\mbox{e}}}}
\newcommand{\half}{\frac{1}{2}}
\newcommand{\tp}{\thinspace .}
\newcommand{\Oof}[1]{\mathcal{O}(#1)}
\newcommand{\dfc}{\alpha} % diffusion coefficient
Forward Euler applied to an initial plug profile
N_x=50 . The method results in a growing, unstable solution if F>0.5 .
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Choosing F=0.5 gives a strange saw tooth-like curve.
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Lowering F to 0.25 gives a smooth (expected) solution.
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