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 <title>iMechanica - CFL number - Comments</title>
 <link>http://imechanica.org/node/3404</link>
 <description>Comments for &quot;CFL number&quot;</description>
 <language>en</language>
<item>
 <title>Re: CFL number</title>
 <link>http://imechanica.org/node/3404#comment-7971</link>
 <description>&lt;p&gt;
See the wikipedia article &lt;a href=&quot;http://en.wikipedia.org/wiki/Courant%E2%80%93Friedrichs%E2%80%93Lewy_condition&quot;&gt;http://en.wikipedia.org/wiki/Courant%E2%80%93Friedrichs%E2%80%93Lewy_condition&lt;/a&gt;
&lt;/p&gt;
&lt;p&gt;
For forward Euler time integration a safe number to use is 0.5 (though higher values may also work).&amp;nbsp;&amp;nbsp;
&lt;/p&gt;
&lt;p&gt;
-- Biswajit&amp;nbsp;
&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Mon, 30 Jun 2008 18:23:42 -0400</pubDate>
 <dc:creator>Biswajit Banerjee</dc:creator>
 <guid isPermaLink="false">comment 7971 at http://imechanica.org</guid>
</item>
<item>
 <title>CFL number</title>
 <link>http://imechanica.org/node/3404</link>
 <description>&lt;p&gt;
I&amp;#39;m working at a University where we are developing and running interface software for CFD simmulations. There are no CFD specialists in my lab, however, so we get the information we need from a couple of other labs around campus.
&lt;/p&gt;
&lt;p&gt;
Unfortunately, no one seems to know what the CFL number is, or how to use it.
&lt;/p&gt;
&lt;p&gt;
Can I just get a simple explanation of the CFL number and a general range in which it should lie?
&lt;/p&gt;
&lt;p&gt;
Thank you!&amp;nbsp;
&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <comments>http://imechanica.org/node/3404#comments</comments>
 <category domain="http://imechanica.org/taxonomy/term/357">Computational Mechanics Forum</category>
 <category domain="http://imechanica.org/taxonomy/term/1612">CFD</category>
 <category domain="http://imechanica.org/taxonomy/term/2527">CFL</category>
 <pubDate>Wed, 25 Jun 2008 12:43:36 -0400</pubDate>
 <dc:creator>BFarley</dc:creator>
 <guid isPermaLink="false">3404 at http://imechanica.org</guid>
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