The Vespiary

The Hive => Chemicals & Equipment => Topic started by: WHITE_DEVIL on November 18, 2002, 08:37:00 PM

Title: Home Made Aspirator Mathematics
Post by: WHITE_DEVIL on November 18, 2002, 08:37:00 PM

Hi bees, just had to show you this, its all the maths behind making an aspirator!(the bernoulli principle)
the gentleman who appears on this page actually made a tap powered aspirator that crushed a 55 gal drum!!(a force of 13 tons required on the walls of the drum and a drop to about 40% of atmospheric pressure!). Just watch the video if you dont believe

amusing video:

http://hyperphysics.phy-astr.gsu.edu/hbase/fluids/aspirv.html (http://hyperphysics.phy-astr.gsu.edu/hbase/fluids/aspirv.html)

un-amusing mathematics:

http://hyperphysics.phy-astr.gsu.edu/hbase/pber.html#beq (http://hyperphysics.phy-astr.gsu.edu/hbase/pber.html#beq)

Title: bernoulli principle
Post by: goiterjoe on November 18, 2002, 09:47:00 PM

I never understood why people always refer to it as the bernoulli principle around here.  I've never heard anyone in a classroom environment refer to how an aspirator works as this, but instead they refer to the thermodynamics of a nozzle to explain how it works.  I think I wrote something back in the day about all the equations that were involved, but I don't feel like digging for the search engine for it right now. 

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If at first you don't succeed, try, try again. Then give up. There's no use being a fool about it.