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Falling stout bubbles explained

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#1    Waspie_Dwarf

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Posted 29 May 2012 - 10:58 AM

Falling stout bubbles explained


www.bbc.co.uk said:

Irish mathematicians may have solved the mystery of why bubbles in stout beers such as Guinness sink: it may simply be down to the glass.

Simulations suggest an upward flow at the glass's centre and a downward flow at its edges in which the liquid carried the bubbles down with it.

But the reasons behind this flow pattern remained a mystery.

Now a study on the Arxiv server reports simulations and experiments showing the standard pint glass shape is at fault.

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#2    Taun

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Posted 29 May 2012 - 05:57 PM

Hmmm... So these researchers got grant money and studied.... beer...

How do I get a job like that?


#3    Waspie_Dwarf

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Posted 29 May 2012 - 06:29 PM

View PostTaun, on 29 May 2012 - 05:57 PM, said:

How do I get a job like that?
Graduate in fluid dynamics.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#4    Taun

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Posted 29 May 2012 - 07:16 PM

View PostWaspie_Dwarf, on 29 May 2012 - 06:29 PM, said:

Graduate in fluid dynamics.

I spent numerous years in the military... I studied some pretty dynamic fluids - in some pretty dynamic bars all around the world... Does that count?


#5    OverSword

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Posted 30 May 2012 - 04:41 PM

Finally, some science I can really appreciate.  I think I'll do an independant study after work today.


#6    ThickasaBrick

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Posted 31 May 2012 - 01:44 AM

Makes much more sense than my theory that Guinness was so great it defied all physical laws.


#7    wereturnip

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Posted 31 May 2012 - 02:53 AM

"May be due to the glass." Why didn't they try another type of glass to see if that was true? Ohhhhh...new round of studies are needed..more grant money...more free Guinness. Brilliant.


#8    Englishgent

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Posted 31 May 2012 - 02:57 AM

Guinness is awful stuff. I think the bubbles sink cos they are dying! :)


#9    Erudite Celt

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Posted 31 May 2012 - 04:20 PM

Ahhhh....Guinness,nectar of the Gods.


#10    Melo -

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Posted 06 June 2012 - 01:14 AM

Because the bubbles are ashamed to be associated with such a girly-man type of drink....

Jk....but mickeys all day


#11    Erudite Celt

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Posted 18 June 2012 - 10:20 AM

View PostMelo -, on 06 June 2012 - 01:14 AM, said:

Because the bubbles are ashamed to be associated with such a girly-man type of drink....

Jk....but mickeys all day
Guinness, girly-man!!! The only thing girly around here is your Avatar :yes: :st Posted Image





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