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lecture notes

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PLM Schemes – Examples of Slopes<br />

Example: Lax-Wendroff ... the RSA perspective<br />

... applied to piecewise constant data •<br />

• • •<br />

• • •<br />

advection<br />

u∆t = ∆x/2<br />

→<br />

• •<br />

•<br />

•<br />

• •<br />

reconstruction<br />

new cell averages<br />

→ too steep slope causes oscillations ...

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