New, simpler, smarter, and more flexible radiator workflow
Radiator setup in bramble has just become significantly more efficient and user-friendly with the improved radiator workflow introduced in the May 2025 release.
Previously, users had two main options when defining radiators:
1. Solid cuboid radiator cores – quick to model in CAD, and easy to make watertight.
2. Front and rear face method – more flexible, and allowed detailed flow monitoring (e.g. total pressure) on both sides of the core.
Most users preferred the second method for its analytical power, despite the extra setup. With this latest update, bramble now combines the simplicity of a solid cuboid with the full monitoring capability of split faces – giving you the best of both worlds.
Automatic face splitting
The improved radiator workflow now includes automatic detection of upstream and downstream faces from a single solid cuboid model.
To enable this, just go to the Template Case editor, where your radiators are defined. The ‘Up/Down’ setting is now a dropdown menu with three options:
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Off– disables the feature. -
Manual– previously labeled “On”; lets you define the faces manually. -
Auto– the new option. bramble will identify and assign the up/down faces for you.
Select Auto, and bramble takes care of the rest.
No more Inside Point
In Auto mode, you’ll notice the Inside Point field is disabled. That’s because bramble now calculates it automatically.
This is especially useful in studies where the radiator position is being optimised. You no longer need to adjust the Template Case each time. Just drop in the new geometry and go.
Relaxed vector alignment
Another major usability improvement: your through and orthogonal vectors no longer need to be perfectly aligned with the radiator faces.
Instead, bramble now uses these vectors to infer the direction of airflow, just keep them approximately aligned. This gives you more flexibility when tweaking orientations or testing variants without forcing you to recreate or modify the template case.
What this means for you
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Faster setup with fewer manual inputs
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Reduced errors or mismatched configurations
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Greater flexibility for moving parts and test variations
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Fewer duplicate template cases needed
Focus on Simulation, Not Setup
This is a big step forward in reducing boilerplate setup and freeing you up to focus on simulation and results. If you’re running parametric studies or part swaps involving radiators, you’ll notice the difference immediately.
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