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How to implement Regression Testing for CFD codes?

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Old   July 5, 2021, 06:14
Default How to implement Regression Testing for CFD codes?
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Sayan Bhattacharjee
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My code is getting very complicated, and due to recent changes some bugs were introduced that went unnoticed for some time. That made me extremely sad. I want a method to ensure that new addition to the codebase, doesn't introduce bugs.

How can implement such a regression testing system for CFD codes?

Specifically, I'm facing difficulty as CFD codes work on arrays containing thousands of values, and I don't know how I can implement a system to validate the results. Preferably something already exists, and I don't have to reinvent the wheel.
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