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− | {| style="width:100%; background:#fcfcfc; margin-top:+.9em; border:1px solid #ccc;"
| + | Define the ''convective'', ''total'' or ''material'' [http://en.wikipedia.org/wiki/Convective_derivative ''material'' derivative] operator as |
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− | {| style="width:280px; border:solid 0px; background:none;"
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− | |style="width:280px; text-align:center; white-space:nowrap; color:#000;"|
| + | <math> |
− | <div style="font-size:162%; border:none; margin:0; padding:.1em; color:#000;">Unofficial OpenFOAM wiki</div> | + | \frac{D}{Dt} = \frac{\partial}{\partial t} + \mathbf{U} \cdot \nabla |
− | <div id="articlecount" style="width:100%; text-align:center; font-size:85%;">{{NUMBEROFARTICLES}} pages have been created</div>
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− | | + | This relates the rate of change of a quantity within an infinitesimal control fluid volume that we would witness if we were riding with it along a streamline (Lagrangian viewpoint), to the rate of change of the quantity that a stationary observer would witness from their vantage point on the streamline (Eulerian viewpoint). |
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− | {|style="width:100%; border:1px solid #e3e0d0; background:#fdfae9; margin:0px 0px;"
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− | |cellpadding="2" cellspacing="5" style="vertical-align:center;"|
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− | | width=25% align=center | [http://www.opencfd.co.uk/openfoam/doc/user.html '''User Guide''']
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− | | width=25% align=center | [http://openfoam.cfd-online.com/cgi-bin/forum/discus.cgi '''Forum''']
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− | | width=25% align=center | [[About this wiki]]
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− | | width=25% align=center | [http://foam.sourceforge.net/doc/Doxygen/html/ '''Doxygen''']
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− | {|style="width:100%; height:400pt; border-spacing:8px; margin:0px 0px;"
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− | <!-- Start of 1st tri-table -->
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− | |style="width:33%; border:1px solid #00bc00; vertical-align:top; background:#fcfffc;"|
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− | {|width="100%" cellpadding="2" cellspacing="5" style="vertical-align:top; background:#fcfffc;"
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− | ! <h2 style="margin:0; background:#bff8bf; font-size:120%; font-weight:bold; border:1px solid #00bc00; text-align:left; color:#000; padding:0.2em 0.4em;">Refer</h2>
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− | * [http://www.opencfd.co.uk/openfoam/doc/user.html User Guide]
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− | * [http://foam.sourceforge.net/doc/Guides-a4/ProgrammersGuide.pdf Advanced Guide]
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− | * [http://foam.sourceforge.net/doc/Doxygen/html/ Source Code]
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− | =====Other documents=====
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− | [http://www.foamcfd.org/resources/theses.html FoamCFD theses] |
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− | ! <h2 style="margin:0; background:#def6de; font-size:120%; font-weight:bold; border:1px solid #00bc00; text-align:left; color:#000; padding:0.2em 0.4em;">Links</h2>
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− | * [http://www.opencfd.co.uk/openfoam/ "OpenFOAM"] is a registered trademark of [http://www.opencfd.co.uk OpenCFD], a UK-based company.
| + | |
− | =====Active sites=====
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− | [http://www.foamcfd.org/ FoamCFD] (English) | [http://www.ofwikija.org/ OFWikiJa] (Japanese) | [http://www.ltt-rostock.de/mediawiki/index.php/OpenFOAM University of Rostock wiki] (German) | [http://mavimo.org/openfoam Mavimo] (Italian) | [http://www.cfditalia.org CFD Italia] (Italian) | [http://notasemcfd.blogspot.com Notes on CFD] (Portuguese)
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− | |}
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− | |style="width:33%; border:1px solid #0000bc; vertical-align:top; color:#000; background:#f9f9ff;"|
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− | {|width="100%" cellpadding="2" cellspacing="5" style="vertical-align:top; background:#f9f9ff;"
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− | ! <h2 style="margin:0; background:#c6c6f3; font-size:120%; font-weight:bold; border:1px solid #0000bc; text-align:left; color:#000; padding:0.2em 0.4em;">Use</h2>
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− | * [http://en.wikipedia.org/wiki/OpenFOAM About OpenFOAM] | [http://en.wikipedia.org/wiki/OpenFOAM Wikipedia article]
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− | * [http://www.opencfd.co.uk/openfoam/download.html#download Download]
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− | * [[Main FAQ|OpenFOAM FAQ]]
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− | =====Other Tools=====
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− | * '''Pre-process''' | [http://www.salome-platform.org/home/presentation/overview/ Salome]
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− | * '''Post-process''' | [http://www.paraview.org/New/index.html Paraview]
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− | ! <h2 style="margin:0; background:#dcdcf4; font-size:120%; font-weight:bold; border:1px solid #0000bc; text-align:left; color:#000; padding:0.2em 0.4em;">Develop</h2>
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− | * The [http://sourceforge.net/ Sourceforge] [http://sourceforge.net/projects/openfoam-extend/ OpenFOAM-extend] project provides a [http://en.wikipedia.org/wiki/Subversion_(software) subversion] repository for collaborative development.
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− | |style="width:33%; border:1px solid #bc0000; vertical-align:top; color:#000; background:#fff7f7;"|
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− | {|width="100%" cellpadding="2" cellspacing="5" style="vertical-align:top; background:#fff7f7;"
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− | ! <h2 style="margin:0; background:#f4c1c1; font-size:120%; font-weight:bold; border:1px solid #bc0000; text-align:left; color:#000; padding:0.2em 0.4em;">News</h2>
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− | OpenCFD commences testing of 1.5beta
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− | 2008: Most of the developments for this release are in: new applications, e.g. for multiphase flow and cavitation, buoyancy-flow and heat transfer, high speed flows and even molecular dynamics; new utilities, e.g. for meshing and case monitoring; and, new modelling, e.g. in Lagrangian particle tracking, radiation and rotating frames of reference. [http://www.opencfd.co.uk/openfoam/version1.5beta.html source]
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− | [[News archive]]
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− | ! <h2 style="margin:0; background:#f6dede; font-size:120%; font-weight:bold; border:1px solid #bc0000; text-align:left; color:#000; padding:0.2em 0.4em;">Learn</h2>
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− | == Workshops, conferences etc ==
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− | * The website of the [http://www.openfoamworkshop.org/ OpenFOAM-Workshop]
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− | * The website of the [http://www.openfoam-conference.com/ OpenFOAM International Conference]
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− | | + | |
− | == Training material / Tutorials ==
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− | | + | |
− | * There is a [http://www.mfix.org/mwiki/index.php/Main_Page Wiki with trainings material] by Hrvoje Jasak.
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− | * [http://powerlab.fsb.hr/ped/kturbo/FsbOpenFOAMWorkshop/ OpenFOAM Workshop 2006] site, contanining presentations and some training material from the first OpenFOAM Workshop at the [http://www.fsb.hr Faculty of Mechanical Engineering and Naval Architecture], [http://www.unizg.hr University of Zagreb], Croatia
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− | | + | |
− | == In the News ==
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− | Articles about OpenFOAM
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− | * [http://www.computerwoche.de/index.cfm?pid=254&pk=552425 Computerwoche] (a german publication) about OpenFOAM going OpenSource
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− | * [http://www.pro-linux.de/news/2005/7690.html Pro-Linux] (another german site) about OpenFOAM going OpenSource
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− | * [http://news.zdnet.com/2110-3513_22-5517622.html ZdNet] (it's in English!!) about OpenFOAM going OpenSource
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− | * [http://news.com.com/Fluid+flow+computing+company+goes+open-source/2110-7344_3-5517622.html CNet] about OpenFOAM going OpenSource (again!)
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− | * A french [http://www.logiciellibre.net/news.php?ref=20050301 interview with Henry Weller]
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− | * [http://newz.dk/forum/item/51757/ NewZ] a danish site about ..... Sorry. I don't understand danish
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− | | align=center | '''[[Main Policy|Rules and Guidelines]]''' | [[Site News]] | [[Main TestSite|Wiki sandpits]]
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This relates the rate of change of a quantity within an infinitesimal control fluid volume that we would witness if we were riding with it along a streamline (Lagrangian viewpoint), to the rate of change of the quantity that a stationary observer would witness from their vantage point on the streamline (Eulerian viewpoint).