At the Darko wind tunnel, a wire mesh screen moderates airflow 40ft away around a corner. Perhaps there is application here?
If you're going to publish correct geometry you should put a Creative Commons bug in the corner. 
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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