Blog
Convergent Science: Not Just Your CFD Vendor, Your CFD Partner
Published
When you purchase software, there are often many resources to bring you up to speed on its use and application for your industry—manuals, online tutorials, YouTube videos. How often, though, will the software vendor be available to work directly with you to optimize that software for your particular...
Aircraft Cabin CFD: Improving Safety and Comfort
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You hauled your heavy bag through the airport, stood in the molasses-slow airport security line, reached your gate just before boarding ends, and rushed aboard. Now, after you've crammed your carry-on into the overhead bin and found your seat, you're sweating. It's uncomfortably hot. Quickly,...
A Bidirectional Spray Modeling Approach: Eulerian-Lagrangian Spray Atomization in CONVERGE 2.4
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In CONVERGE, the standard technique for modeling sprays (such as for liquid fuel injection) employs an Eulerian approach for the continuous fluid domain and a Lagrangian approach for the spray parcels. With the Eulerian approach, CONVERGE treats the fluid as a continuum while with the Lagrangian...
Paint Bake Oven CFD
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If you have experience with legacy CFD codes, and have ended up stuck with the task of grid generation, you probably have a laundry list of case setup grievances. I'll tell you my list: a wide range of length scales, moving geometries, internal corners, cusped edge interfaces, and long-duration...
HCCI Engine Optimization with CONVERGE CFD
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Just this week, Mazda Motor Corporation announced plans to introduce a gasoline compression ignition engine technology deemed SKYACTIV-X into commercial production engines in 2019. Mazda claims that this will be the world's first commercial gasoline compression ignition engine. Gasoline...
Optimizing a Reduced Reaction Mechanism
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When I cook, it's typically Indian cuisine and I use about 30 ingredients. I recently got into minimalist baking, and while it's relatively straightforward to reduce a nine-ingredient macaroon to five, the question I struggled with was can you do that with Indian food with its huge ingredient list...
With Great Power Comes Great Training
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Paint sprayers, nail guns, jackhammers, spreadsheets—whether you want to paint a fence, install a roof, remove a sidewalk, or discover correlations in an enormous data set, these powerful tools can help you solve your problems efficiently. But these tools work best when wielded by adept hands. The...
Predictive CFD Applied–Progress in Gas Turbine Modeling
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At Convergent Science, we got our start modeling internal combustion engines. Naturally, as we developed CONVERGE, we added tools and features with IC engine simulations in mind. But features like a detailed chemistry solver, automatic meshing with Adaptive Mesh Refinement, moving geometries, and...
Steady-State Solver and Multiple Reference Frame Approach
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One of CONVERGE's strengths has always been providing accurate results for complex transient problems with moving geometry. With the introduction of new features in CONVERGE v2.4, this strength extends to steady-state problems. Two new features in CONVERGE v2.4 that accelerate your steady-state...
The Merits of Mechanism Reduction
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Mount Everest grows about 4 mm a year1. Mostly, we accept that it's 8850 m high. In this moving system, approximations help you get on with climbing the mountain rather than taking a tape measure to it. Sometimes detail isn't useful in the context you are in. Sometimes you'd rather use your...