Converging duct

  • Thread starter chhitiz
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if i keep a funnel shaped long tube on the roof of a moving vehicle, will the air going in follow Bernoulli's equation?
 

russ_watters

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Yes, though depending on the length and how rough it is you may have to consider losses too.
 
221
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how could roughness cause losses? by disrupting streamlined flow?
 

russ_watters

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Friction is a force, moving air over it is a mass flow, put them together and you get power. It is easy enough to measure the loss by measuring the drop in total pressure and multiplying by mass flow rate.
 

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