Symscape blogs
http://www.symscape.com/blog
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.enMeshing in a Single, Integrated Simulation Environment
http://www.symscape.com/blog/meshing-single-integrated-simulation-environment
<p><a href="http://www.symscape.com/meshing">Meshing</a> in a <a href="http://www.symscape.com/product/caedium">single, integrated simulation environment (e.g., Caedium)</a> for Computational Fluid Dynamics (CFD) is different, in a good way, from meshing in a dedicated mesh or post-processing tool. An integrated CFD simulation environment has the standard meshing tools, but in addition upstream you have a <a href="http://www.symscape.com/blog/cfd-geometry-creation">full geometry engine</a> to create and modify geometry as needed, and downstream you can use the same meshing tools for visualization, such as seeds for streamlines and surfaces for results interpolation. You are not forced into a linear progression through the CFD simulation process, because often it requires multiple visits backwards and forwards (non-linear) through the tool chain to get to a final result. Also the visualization of mesh metrics (e.g., surface mesh quality) is identical to general flow field visualization (e.g., pressure), which minimizes the number of concepts you need to learn.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/integrated-sim-env/integrated-cfd-simulation-environment.png" alt="Single, Integrated CFD Simulation Environment" width="601" height="449" /><span class="caption"><strong>Single, Integrated CFD Simulation Environment</strong></span></span></p>
<p><a href="http://www.symscape.com/blog/meshing-single-integrated-simulation-environment" target="_blank">read more</a></p>http://www.symscape.com/blog/meshing-single-integrated-simulation-environment#commentsWed, 25 Nov 2015 14:27:30 +0000Richard Smith1607 at http://www.symscape.comCFD Geometry Creation
http://www.symscape.com/blog/cfd-geometry-creation
<p>Given the option, it is often better to create geometry specifically for your Computational Fluid Dynamics (CFD) simulations. It is even better if your CFD system supports geometry creation. Then you can stay within a <a href="http://www.symscape.com/product/professional">single integrated simulation environment</a> for your entire task without the need to learn or purchase additional software packages.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/geometry-creation/ahmed-25-35-script-volumes.png" alt="Two Flow Volumes Created Ready For CFD Simulation" width="600" height="322" /><span class="caption"><strong>Two Flow Volumes Created Ready For CFD Simulation</strong></span></span></p>
<p><a href="http://www.symscape.com/blog/cfd-geometry-creation" target="_blank">read more</a></p>http://www.symscape.com/blog/cfd-geometry-creation#commentsThu, 19 Nov 2015 19:54:52 +0000Richard Smith1606 at http://www.symscape.comCFD Prefers NURBS Over STL
http://www.symscape.com/blog/cfd-prefers-nurbs-over-stl
<p>Let me explain why, given the option, you should prefer analytic geometry (e.g., NURBS) over faceted geometry (e.g., STL) for <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a>.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/analytic-faceted/faceted-wheel-mesh.png" alt="CFD Mesh for a Faceted Wheel" width="600" height="445" /><span class="caption"><strong>CFD Mesh for a Faceted Wheel</strong></span>Note spurious flat spots</span></p>
<p><a href="http://www.symscape.com/blog/cfd-prefers-nurbs-over-stl" target="_blank">read more</a></p>http://www.symscape.com/blog/cfd-prefers-nurbs-over-stl#commentsWed, 04 Nov 2015 19:57:51 +0000Richard Smith1604 at http://www.symscape.comDIY CFD
http://www.symscape.com/blog/diy-cfd
<p>If fluid flow is a primary driver for your design project then <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> is likely to be a cost effective way to help meet your goals. You could outsource your CFD to consultants, but in the long run it usually pays to <a href="http://www.symscape.com/blog/getting-started-with-cfd">do it yourself</a>.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/dust-collector/assembly/assembly-velocity-iso-surfaces.png" alt="Dust Collector CFD Simulation" width="562" height="600" /><span class="caption"><strong>Dust Collector CFD Simulation</strong></span></span></p>
<p><a href="http://www.symscape.com/blog/diy-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/diy-cfd#commentsThu, 22 Oct 2015 15:30:37 +0000Richard Smith1603 at http://www.symscape.comHow to Control Your CFD Simulations in Caedium
http://www.symscape.com/blog/how-to-control-your-cfd-simulations-in-caedium
<p>The <a href="http://www.symscape.com/node/969">Caedium Simulation Control Toolbar</a> provides the controls to initialize and run your <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> simulations. Take a moment to learn how to use these simulation controls effectively.</p>
<p><span class="inline inline-center"><img alt="Caedium CFD Simulation" src="http://www.symscape.com/files/pictures/sim-cntrl/stepped-simulation.png" width="600" height="450" /><span class="caption"><strong>Caedium CFD Simulation</strong></span>After a single step of iterations</span></p>
<p><a href="http://www.symscape.com/blog/how-to-control-your-cfd-simulations-in-caedium" target="_blank">read more</a></p>http://www.symscape.com/blog/how-to-control-your-cfd-simulations-in-caedium#commentsWed, 14 Oct 2015 17:44:50 +0000Richard Smith1601 at http://www.symscape.comHow to Control Your CFD Mesh in Caedium
http://www.symscape.com/blog/how-to-control-your-cfd-mesh-in-caedium
<p>The <a href="http://www.symscape.com/node/723">Caedium Accuracy tool</a> is largely responsible for determining the accuracy of your <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> simulations by imposing constraints on the underlying <a href="http://www.symscape.com/meshing">computational mesh or grid</a>. Therefore, it's worth spending a moment to learn how the Accuracy tool in Caedium works.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/mesh-control/air-multiplier-volume-mesh.png" alt="Volume Mesh Elements" width="600" height="401" /><span class="caption"><strong>Volume Mesh Elements</strong></span></span></p>
<p><a href="http://www.symscape.com/blog/how-to-control-your-cfd-mesh-in-caedium" target="_blank">read more</a></p>http://www.symscape.com/blog/how-to-control-your-cfd-mesh-in-caedium#commentsWed, 07 Oct 2015 20:44:25 +0000Richard Smith1600 at http://www.symscape.comWalkalong Tumblewing Meets CFD
http://www.symscape.com/blog/walkalong-tumblewing-meets-cfd
<p>To complete this series of <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> on simple rotating paper wings, we now turn our attention to the walkalong tumblewing.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/walkalong/walkalong-tumblewing-angle-0-vectors.png" alt="CFD Simulation of a Walkalong Tumblewing" width="600" height="438" /><span class="caption"><strong>CFD Simulation of a Walkalong Tumblewing</strong></span>Velocity vectors at 0 degrees</span></p>
<p><a href="http://www.symscape.com/blog/walkalong-tumblewing-meets-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/walkalong-tumblewing-meets-cfd#commentsWed, 16 Sep 2015 14:52:33 +0000Richard Smith1598 at http://www.symscape.comTumblewing Meets CFD
http://www.symscape.com/blog/tumblewing-meets-cfd
<p>Although a sheet of paper can be made to fly by spinning, it isn't always reliable. By adding winglets and flaps with 4 simple folds we can improve the stability of the wing and in so doing produce a <a href="https://en.wikipedia.org/wiki/Tumblewing">tumblewing</a>. How do the aerodynamics of a tumblewing compare with a sheet of paper? It just so happens <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> can help, just as it did with the <a href="http://www.symscape.com/blog/spinning-paper-sheet-meets-cfd">simulation of the spinning sheet of paper</a>.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/tumblewing/tumblewing-angle-90-pressure.png" alt="CFD Simulation of a Rotating Tumblewing" width="600" height="401" /><span class="caption"><strong>CFD Simulation of a Rotating Tumblewing</strong></span>Pressure iso-surfaces at 90 degrees</span></p>
<p><a href="http://www.symscape.com/blog/tumblewing-meets-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/tumblewing-meets-cfd#commentsTue, 08 Sep 2015 13:04:55 +0000Richard Smith1597 at http://www.symscape.comSpinning Paper Sheet Meets CFD
http://www.symscape.com/blog/spinning-paper-sheet-meets-cfd
<p>I donâ€™t think anyone would argue with the fact that paper airplanes are simple (and fun!), but what is the simplest paper airplane that can still fly? I give you a single rectangular piece of paper without any folds that will gently spin around its longest horizontal axis if released with a long edge parallel to the ground. Next, what is the simplest <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a> method that can capture the essence of the spinning paper? I give you the <a href="http://www.symscape.com/blog/moving-reference-frame-for-cfd">Moving Reference Frame</a> (MRF, also known as the frozen rotor method) option for CFD. Combine the two and you arrive at an interesting simulation of a simple phenomenon.</p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/rotating-paper/rotating-paper-angle-90-vectors.png" alt="CFD Simulation of a Rotating Paper Sheet" width="600" height="459" /><span class="caption"><strong>CFD Simulation of a Rotating Paper Sheet</strong></span>Velocity vectors at 90 degrees</span></p>
<p><a href="http://www.symscape.com/blog/spinning-paper-sheet-meets-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/spinning-paper-sheet-meets-cfd#commentsTue, 01 Sep 2015 20:44:40 +0000Richard Smith1596 at http://www.symscape.comGet Started With CFD
http://www.symscape.com/blog/getting-started-with-cfd
<p>New to <a href="http://www.symscape.com/computational-fluid-dynamics">Computational Fluid Dynamics (CFD)</a>? Then you've come to the right place. Becoming productive in CFD can be a daunting task. However, as with all long term goals, if you break it down into smaller, achievable tasks, in no time you'll be up to speed and ready for production level work. Assuming you are familiar with the <a href="http://www.symscape.com/blog/cfd-novice-expert-part2-fluid-dynamics-101">fluid dynamics</a> of your application, then let's begin. </p>
<p><span class="inline inline-center"><img src="http://www.symscape.com/files/pictures/misc/caedium-room.png" alt="CFD Simulation in Caedium" width="600" height="449" /><span class="caption"><strong>CFD Simulation in Caedium</strong></span></span></p>
<p><a href="http://www.symscape.com/blog/getting-started-with-cfd" target="_blank">read more</a></p>http://www.symscape.com/blog/getting-started-with-cfd#commentsWed, 12 Aug 2015 15:40:14 +0000Richard Smith1592 at http://www.symscape.com