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Save money and time performing fluid flow and heat transfer simulations with Caedium - an affordable priced, easy-to-use, all-in-one Computational Fluid Dynamics (CFD) software system.enTop 5 Reasons Why You Should Try CFD
http://www.symscape.com/blog/top-5-reasons-why-you-should-try-cfd
<p>There are many reasons why <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> has become a mainstay of most engineering endeavors that have a fluid flow element, but here are my top 5.</p>
<p><span class="inline inline-center"><a href="http://www.symscape.com/product/professional"><img src="http://www.symscape.com/files/images/professional.png" alt="CFD Software in Action: Caedium Professional" title="CFD Software in Action: Caedium Professional" class="image image-_original " width="640" height="480" /></a><span class="caption"><strong>CFD Software in Action: </strong>Caedium Professional</span></span></p>
<div class="image-clear"></div><p><a href="http://www.symscape.com/blog/top-5-reasons-why-you-should-try-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/top-5-reasons-why-you-should-try-cfd#commentsTue, 25 Nov 2014 21:29:14 +0000Richard Smith1546 at http://www.symscape.comHeroic Aircraft Design Aided by Caedium CFD
http://www.symscape.com/blog/heroic-aircraft-design-aided-by-caedium-cfd
<p>Niklas Wendel and Julia Gundert, students at Thomas-Morus-Gymnasium, Daun, Germany, recently completed a project to envisage an airliner of the future with a focus on sustainability and fuel efficiency. Their project was named HELT, translated as a German acronym for<em> 'High Efficiency Aircraft'</em>, and is also similar to the German word<em> 'held'</em> which translates to <em>'hero'</em> in English. During their early concept design phase they used <a href="http://www.symscape.com/product/professional">Caedium Professional</a> to perform <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> simulations to evaluate the aerodynamic efficiency of various configurations before selecting their final <a href="http://www.symscape.com/blog/blended-wing-bodies-flying-wings">Blended Wing-Body (BWB)</a> design.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/heroic-aircraft/helt-team.jpg" alt="HELT Team" width="600" height="399" /><span class="caption"><strong>HELT Team</strong></span>Niklas Wendel and Julia Gundert</span></p>
<p><a href="http://www.symscape.com/blog/heroic-aircraft-design-aided-by-caedium-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/heroic-aircraft-design-aided-by-caedium-cfd#commentsWed, 12 Nov 2014 18:43:57 +0000Richard Smith1544 at http://www.symscape.comInternal Flow with CFD
http://www.symscape.com/blog/internal-flow-with-cfd
<p>Just as <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> has found extensive use across a wide range of <a href="http://www.symscape.com/blog/external-aerodynamics-with-cfd">external flow applications</a>, it is also used to simulate a diverse set of internal flow applications.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/windtunnelcar/fan-streamlines.png" alt="Wind Tunnel CFD Simulation" width="600" height="404" /><span class="caption"><strong>Wind Tunnel CFD Simulation</strong></span>Streamlines colored by velocity magnitude</span></p>
<p><a href="http://www.symscape.com/blog/internal-flow-with-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/internal-flow-with-cfd#commentsThu, 06 Nov 2014 18:45:40 +0000Richard Smith1543 at http://www.symscape.comExternal Aerodynamics with CFD
http://www.symscape.com/blog/external-aerodynamics-with-cfd
<p><a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> sees broad use in many applications across a diverse range of industries. No more so is this true than in the applications you'll see for CFD in external aerodynamics analysis.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/misc/wind-city.png" alt="CFD Simulation of a City" width="600" height="458" /><span class="caption"><strong>CFD Simulation of a City</strong></span>Air Velocity Vectors</span></p>
<p><a href="http://www.symscape.com/blog/external-aerodynamics-with-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/external-aerodynamics-with-cfd#commentsWed, 22 Oct 2014 19:55:02 +0000Richard Smith1538 at http://www.symscape.comA Case for Renaming the Navier-Stokes Equations
http://www.symscape.com/blog/case-for-renaming-the-navier-stokes-equations
<p>You probably know that the <a href="http://www.symscape.com/blog/navier_stokes_equations">Navier-Stokes (NS) equations</a> are named after <a href="http://en.wikipedia.org/wiki/Claude-Louis_Navier">Claude-Louis Navier</a> and <a href="http://en.wikipedia.org/wiki/Sir_George_Stokes,_1st_Baronet">George Gabriel Stokes</a>. Navier come up with the first original derivation based on discrete molecular interactions (discrete approach) and Stokes originated the assumption of a continuum directly using viscosity that is the widely referenced approach still taught today. However, between these two approaches there were other derivations, a<em> continuum of sorts</em>, attributed to other luminaries of 19th Century science.</p>
<p><span class="inline inline-center"><img alt="Navier and Stokes" src="http://www.symscape.com/files/pictures/misc/navier-stokes-portraits.jpg" width="464" height="307" /><span class="caption"><strong>Navier (left) and Stokes</strong></span>Room for more?</span></p>
<p><a href="http://www.symscape.com/blog/case-for-renaming-the-navier-stokes-equations" target="_blank">read more</a></p>http://www.symscape.com/blog/case-for-renaming-the-navier-stokes-equations#commentsTue, 14 Oct 2014 13:05:00 +0000Richard Smith1532 at http://www.symscape.comLudwig Prandtl: Real Fluids Explained
http://www.symscape.com/blog/ludwig-prandtl-real-fluids-explained
<p>Prior to <a href="http://en.wikipedia.org/wiki/Ludwig_Prandtl">Ludwig Prandtl</a> (1875 - 1953), analytic analysis of fluids with an early form of <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a>, confined to paper and pencil, assumed <em>ideal</em> inviscid potential flow. However, this approach was less than <em>ideal</em> at predicting drag (<a href="http://en.wikipedia.org/wiki/D'Alembert's_paradox">d'Alembert's paradox</a>) and airfoil stall, which was a pressing problem for engineers at the dawn of powered heavier-than-air flight. Prandtl developed practical theories for real fluids that found favor with aircraft designers. Also, like <a href="http://www.symscape.com/blog/osborne-reynolds-a-giant-in-fluid-dynamics">Osborne Reynolds</a> before him, Prandtl had a <a href="http://www.symscape.com/dimensionless-numbers">non-dimensional number</a>, the <a href="http://en.wikipedia.org/wiki/Prandtl_number">Prandtl Number</a>, named after him.</p>
<p><span class="inline inline-center"><iframe width="560" height="315" src="//www.youtube.com/embed/cv952Nhc_vs?list=PL0jAiXLfdUJBAoYmevhgcao62CBX9fIlF" frameborder="0" allowfullscreen></iframe><span class="caption"><strong>The Life and Times of Ludwig Prandtl</strong></span>Told by <a href="http://en.wikipedia.org/wiki/Eberhard_Bodenschatz">Eberhard Bodenschatz</a></span></p>
<p><a href="http://www.symscape.com/blog/ludwig-prandtl-real-fluids-explained" target="_blank">read more</a></p>http://www.symscape.com/blog/ludwig-prandtl-real-fluids-explained#commentsWed, 08 Oct 2014 21:06:28 +0000Richard Smith1531 at http://www.symscape.comOsborne Reynolds: A Giant in Fluid Dynamics
http://www.symscape.com/blog/osborne-reynolds-a-giant-in-fluid-dynamics
<p>If you have performed simulations with industrial <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> and thereby solved the <a href="http://www.symscape.com/reynolds-averaged-navier-stokes-equations">Reynolds-Averaged Navier-Stokes (RANS) equations</a>, or if you have compared scaled fluid dynamic experiments with their full size counterparts using the <a href="http://www.symscape.com/reynolds-number">Reynolds Number</a>, then you have benefited from the groundbreaking work of <a href="http://en.wikipedia.org/wiki/Osborne_Reynolds">Osborne Reynolds</a> (1842 - 1912).</p>
<p><span class="inline inline-center"><iframe width="560" height="315" src="//www.youtube.com/embed/Wa-RSKv7SRU?list=PL0jAiXLfdUJBAoYmevhgcao62CBX9fIlF" frameborder="0" allowfullscreen></iframe><span class="caption"><strong>The Life and Times of Osborne Reynolds</strong></span>Told by <a href="http://en.wikipedia.org/wiki/Brian_Launder">Brian Launder</a> (himself a giant in turbulence modeling)</span></p>
<p><a href="http://www.symscape.com/blog/osborne-reynolds-a-giant-in-fluid-dynamics" target="_blank">read more</a></p>http://www.symscape.com/blog/osborne-reynolds-a-giant-in-fluid-dynamics#commentsThu, 02 Oct 2014 21:21:29 +0000Richard Smith1530 at http://www.symscape.comSliver Treatment Strategies for CFD
http://www.symscape.com/blog/sliver-treatment-strategies-for-cfd
<p>Extremely thin, high-aspect-ratio geometry faces (also known as slivers) can cause problems for meshing and adversely affect <a href="//www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> simulation stability. Learn some strategies to identify and deal with slivers to maximize your CFD productivity.</p>
<p><span class="inline inline-center"><img src="//www.symscape.com/files/pictures/sliver/sliver-surface-mesh.png" alt="Sliver Surface" width="500" height="277" /><span class="caption"><strong>Sliver Surface</strong></span>Produces poor surface mesh elements (blue)</span></p>
<p><a href="http://www.symscape.com/blog/sliver-treatment-strategies-for-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/sliver-treatment-strategies-for-cfd#commentsThu, 11 Sep 2014 12:39:05 +0000Richard Smith1525 at http://www.symscape.comHow to Fix Small Acute Angles for CFD
http://www.symscape.com/blog/how-to-fix-small-acute-angles-for-cfd
<p>Small acute angles in your geometry, such as those found where a tangential surface meets a cylindrical surface, can lead to poor results from your <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> simulation. Keep reading to learn how to identify and remedy acute angles.</p>
<p><span class="inline inline-center"><img src="//www.symscape.com/files/pictures/tangent/tangent-mesh.png" alt="Small Acute Angled Geometry Feature" width="500" height="300" /><span class="caption"><strong>Small Acute Angled Geometry Feature</strong></span>Produces poor mesh elements</span></p>
<p><a href="http://www.symscape.com/blog/how-to-fix-small-acute-angles-for-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/how-to-fix-small-acute-angles-for-cfd#commentsThu, 28 Aug 2014 13:38:17 +0000Richard Smith1523 at http://www.symscape.comSmall Feature Removal for CFD
http://www.symscape.com/blog/small-feature-removal-for-cfd
<p>In preparing geometry for a <a href="//www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> simulation you will sometimes find small geometry features (edges and faces) that are irrelevant for your simulation. To resolve a small irrelevant feature would require a large number of small mesh cells that would be a waste of precious computing resources. Keep reading to find out how to detect and remove such features.</p>
<p><span class="inline inline-center"><img src="//www.symscape.com/files/pictures/small-feature-removal/small-feature-mesh.png" alt="Small Feature Causing Unnecessary Mesh Cluster" width="499" height="304" /><span class="caption"><strong>Small Feature Causing Unnecessary Mesh Cluster</strong></span></span></p>
<p><a href="http://www.symscape.com/blog/small-feature-removal-for-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/small-feature-removal-for-cfd#commentsTue, 19 Aug 2014 15:24:51 +0000Richard Smith1522 at http://www.symscape.com