WTF is this!?!?
#1
10-14-2009, 08:59 PM
Join Date: Oct 2006
Location: Constant State of Confusion
Posts: 5,942
WTF is this!?!?
Has anyone seen thing? 
http://www.dyson.com/fans/
Now I own a Dyson (two actually) and will most likely never buy another type of vaccum - yes, they are that good! But a bladeless fan for $300?!?!?!
Cool technology if it works (which I'm certain it does) but at that price.... naw, I'll stick to one with blades for $40 until it breaks
But it is cool
http://www.dyson.com/fans/
Now I own a Dyson (two actually) and will most likely never buy another type of vaccum - yes, they are that good! But a bladeless fan for $300?!?!?!
Cool technology if it works (which I'm certain it does) but at that price.... naw, I'll stick to one with blades for $40 until it breaks
But it is cool
#2
10-14-2009, 09:02 PM
Lvl-65 Sorceress: 9,571-HP/7,796-EP
Join Date: Feb 2005
Location: The other side of midnight.
Posts: 7,462
#5
10-14-2009, 10:21 PM
so will we now go with these for Wind Farms so as not to **** off the Animal freaks who are concerned about birds getting killed by our new incredibly ineffective wind farms?
#8
10-15-2009, 12:21 AM
It uses the natural viscosity and fluid stiction that occurs in laminar flow to draw ambient air through the opening (and further down stream, from the air volume around the moving column).
It pulls air in from the base, and pushes it out through a small opening in the ring ... which actually has a cross section like an airplane wing. The size of the slit, and it's orientation on the airfoil, force the outgoing air into laminar flow. This in turn allows the flow to accelerate down the back side of the airfoil ... at the low reynolds numbers this system will operate at, the viscous forces will dominate the flow. Causing the laminar jet to slowly accelerate a column of air.
Their explanation video is actually pretty good ... http://www.dyson.com/technology/airm...asp#HowItWorks
It pulls air in from the base, and pushes it out through a small opening in the ring ... which actually has a cross section like an airplane wing. The size of the slit, and it's orientation on the airfoil, force the outgoing air into laminar flow. This in turn allows the flow to accelerate down the back side of the airfoil ... at the low reynolds numbers this system will operate at, the viscous forces will dominate the flow. Causing the laminar jet to slowly accelerate a column of air.
Their explanation video is actually pretty good ... http://www.dyson.com/technology/airm...asp#HowItWorks
#9
10-15-2009, 01:18 AM
Join Date: Oct 2006
Location: Constant State of Confusion
Posts: 5,942
I'm with ya - I watched the video and it seems they are using a time tested airplane foill design to help draw and move air with little foce... it's really a cool design