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Wort Whirlpool - Coriolis Effect?

 
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mjo2125



Joined: 27 Feb 2017
Posts: 35
Location: Dayton, OH


PostLink    Posted: Sat Jun 10, 2017 9:52 pm    Post subject: Wort Whirlpool - Coriolis Effect? Reply with quote


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Ever notice water draining in your sink rotates down the drain in a counterclockwise direction (at least mine in Ohio)? There's debate as to whether the Coriolis Effect associated with the Earth's rotation contributes to the rotational direction of drain water. For argument's sake, if there is a Coriolis Effect influencing the direction of water rotation, would it be advantageous to orient the boil kettle whirlpool nozzle so as to induce counterclockwise wort rotation aided by Coriolis?
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Kazumichan



Joined: 07 May 2014
Posts: 149
Location: Cincinnati Ohio area

Working on: Irish Red, Winter warmer


PostLink    Posted: Sat Jun 10, 2017 10:36 pm    Post subject: Reply with quote

Coriolis Effect really only effects large bodies, such as a hurricane

"The origin of this myth comes from applying a scientific principle to a situation where it does not fit. The Coriolis deflection causes cyclonic systems to rotate counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. It was inevitable that someone would suggest (without checking) that a sink should drain in a similar manner.

However, a cyclone is more than 1000 kilometers in diameter and may exist for several days. By contrast, a typical sink is less than a meter in diameter and drains in a matter of seconds. On this scale, the Coriolis force is miniscule. Therefore, the shape of the sink and how level it is has more to do with the direction of water flow than the Coriolis force."
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kal
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PostLink    Posted: Sun Jun 11, 2017 12:04 am    Post subject: Reply with quote

Yup. I would think too that the force behind something like a pump pushing into a kettle to induce spin would be thousands if not millions of times strong than the natural pull from coriolis. It's not something I'd be concerned with.

Kal

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Ozarks Mountain Brew



Joined: 22 May 2013
Posts: 494
Location: The Ozark Mountains of Missouri

Drinking: Amber Bock

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PostLink    Posted: Sun Jun 11, 2017 12:21 am    Post subject: Reply with quote

I wasn't thinking about the science but I did a test with whirlpool speed left or right, all I can say is whirl-pooling left or counter clockwise is faster in my pot
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mjo2125



Joined: 27 Feb 2017
Posts: 35
Location: Dayton, OH


PostLink    Posted: Sun Jun 11, 2017 11:35 am    Post subject: Reply with quote

A simple non-scientific test is to float a Ping-Pong ball in water and time how long it takes to make its way around the pot in both directions. I may try that...
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David_H



Joined: 13 Nov 2013
Posts: 123
Location: Savannah, GA

Drinking: Dry Irish Stout, Electric Pale Ale, American Amber Ale, Irish Red Ale


PostLink    Posted: Mon Jun 12, 2017 12:30 pm    Post subject: Reply with quote

It's very important that the Kettle is pointed to the North, otherwise it won't work...
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mjo2125



Joined: 27 Feb 2017
Posts: 35
Location: Dayton, OH


PostLink    Posted: Mon Jun 12, 2017 11:13 pm    Post subject: Reply with quote

Very Happy
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mjo2125



Joined: 27 Feb 2017
Posts: 35
Location: Dayton, OH


PostLink    Posted: Wed Jun 14, 2017 9:48 pm    Post subject: Reply with quote

edelmetall bru kettle with standard tangential port for counterclockwise whirlpool.


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