Hairymicks Wadefish (kadaitchi)

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scottrunnr
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Post by scottrunnr »

What are venturi drains and how do you install them?
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Kayak Jack
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Post by Kayak Jack »

scottrunnr wrote:What are venturi drains and how do you install them?
A venturi generates the Bernoulli principle. A slip stream of fluid (liquid or a gas) exerts less pressure (a partial vacuum) sideways when it moves, than when it is stationary. That's what makes a carburetor work, perfume sprayers too.

When Mick achieves a hull speed of 0.002 Mach, it will suck his kayak dry.
Kayak Jack
Doing what you like is FREEDOM
Liking what you do is HAPPINESS
I spent most of my money on whiskey and women - and I'm afraid I just wasted the rest.
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jem
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Post by jem »

it's a drain that causes a suction effect. As the hull moves and water flows past the venturi on the hull outter skin, it sucks the water out of the other end.

Draw back is you have to be moving for them to work. Unless you go with like a battery powered pump or something.
-Matt. Designer.
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scottrunnr
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Post by scottrunnr »

Gotcha. I'll stick with the scuppers. Though I have to admit that I'm a bit apprehensive about cutting the holes in the hull for the scuppers. :?
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hairymick
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Post by hairymick »

Hi Guys,

My venturi's will be angled down and back at about 10 degrees so they will drain when stationary.
Regards,
Mick

JEMWATERCRAFT Swampgirl; Wadefish;Touring Pirogue;South Wind; P5 ;
Laker X 2, Sasquatch 16.5 T-V 15 Okwata 15:
Cobia 15 (under construction)
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Kayak Jack
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Post by Kayak Jack »

Gonna have a check valve on those hummers?
Kayak Jack
Doing what you like is FREEDOM
Liking what you do is HAPPINESS
I spent most of my money on whiskey and women - and I'm afraid I just wasted the rest.
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jem
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Post by jem »

hairymick wrote:Hi Guys,

My venturi's will be angled down and back at about 10 degrees so they will drain when stationary.
Are they 2 pieces with a tube connecting?

I guess I'm kinda lost on how you'll do it.
-Matt. Designer.
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jcubero
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Post by jcubero »

You could always seal yourself into the kayak with one of those rubber gaskets, then have a large plate of beans. The resulting positive pressure will keep the boat totally dry :shock: :lol:
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paddling4sharks
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Post by paddling4sharks »

Mornin';
...be careful, sometimes the incomin' supercedes the outgoin' :lol:Image
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Kayak Jack
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Post by Kayak Jack »

Pretty low wind signature, ehh?
Kayak Jack
Doing what you like is FREEDOM
Liking what you do is HAPPINESS
I spent most of my money on whiskey and women - and I'm afraid I just wasted the rest.
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