Blog
Prediction or Postdiction? In CFD, the Prefix Matters
Published
If you've been following my blog series Toward Predictive Combustion, you know that at Convergent Science we are passionate about predictions. You're probably thinking to yourself, "That's obvious—you create CFD software!" But it's actually less obvious than you might think. Much of the CFD that...
The Need for Detailed Soot Modeling in CFD
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The United States Environmental Protection Agency (US EPA) has strict standards to control the emissions polluting the air. The latest tier 3 standards are set to start from 2017 and immediately require a lower sulfur content in gasoline. These new regulations will apply to most vehicles on the...
Time-Savers in CONVERGE Studio
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Local coordinates Modern fuel-injected engines are geometrically complex, and such complexity makes every aspect of computational analysis more challenging. You might have passed off CAD duty to a colleague, and you can avoid discretizing the volume with CONVERGE's automatic meshing and cut-cell...
Mathematical Acrobatics
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The Swinging Sticks or Chaos Pendulum is the latest addition to the Convergent Science headquarters. This kinetic sculpture embodies the essence of what makes CONVERGE CFD software unique: we can efficiently simulate chaos. Our CFD solver is mathematically and physically robust, and we allow the...
No Mesh, No Mess: Repairing Dirty Surfaces with Polygonica
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For CONVERGE CFD simulations, you do not have to generate a volume mesh. The robust and efficient automatic mesh generation algorithm in CONVERGE does the work for you, accelerating your CFD workflow. Even though you do not have to generate a volume mesh, you may need to perform surface repair...
Under Pressure: Relief from the Pain of Meshing for Pressure Relief Valve and Reciprocating Compressor Simulations
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As we explore new applications for CONVERGE, we look for products in which the flow and motion might be problematic for other CFD programs to capture. In the past year, we found an application that shared many characteristics with our flagship application, internal combustion engines: the...
A Call to Order
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From the Toward Predictive Combustion blog series A long time ago in a galaxy far, far away… I wrote my last blog! Why has it taken me so long to blog again? Really there's no excuse, but we at Convergent Science have been busy adding offices, forming partnerships, hosting user conferences, and...
Now Available in HD
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From the Toward Predictive Combustion blog series Years ago, on Black Friday no less, I remember coming home with my first High Definition Television. At that time there were only limited HD shows available, however I found myself trading good TV for stunning image quality. Once I caught a glimpse...
The ABC's of Limiting User-to-User Mesh Variations
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We've all experienced it… The old "Our group in 'pick your location' is getting very different results from ours." When it comes to CFD there have been numerous advances in the types of meshing technologies used: tetrahedral, hexahedral, polyhedral, chimera, etc., but little has been done until...
Automatic (Meshing) for the People
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From the Toward Predictive Combustion blog series Automation is a hot topic these days. With the recent popularity of such books as The 4-Hour Workweek and The 80/20 Principle, the idea of achieving more with less is something we all dream about. The key to this of course is to work smarter, not...