New answers tagged airflow
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Increasing airflow of fan
The bag trick only works because the momentum of the air you're blowing into the bag is "knocking" it open. The force of the wind spreading the plastic apart is what draws more air in to ...
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How to determine time taken for tyre to deflate using CFD analysis?
I don't think CFD is the right tool. You can use an orifice equation, say from ASME, to calculate flow rate from inner and outer pressure. This takes the form of:
$$\dot{m}=\frac{EC_D}{\sqrt{1-\beta^4}...
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