ELi5 Why are CFD and wind tunnels used together for flight simulation

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I am wondering why there aren’t full simulations using CFD for flight.

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8 Answers

Anonymous 0 Comments

Ever seen computers with just ludicrous stats? Like what could you possibly be doing that needs 2x 60 core CPUs with 4 TB of RAM?

The answer is Computational Fluid Dynamics, and it’d like more please

Accurate simulations require more points, but more points require more processing power. A balance has to be struck between accuracy of the simulation and having it complete within your lifetime.

Computing power and storage has improved so we are able to do more and more complex simulations, but so far its impossible to simulate on a scale that accurately reflects the real world so we still build small scale test models *just to be sure*

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