Zalman's CNPS11X Extreme Gets V-Shape Design
Zalman's new CNPS11X Extreme features a custom heatpipe and a V-shaped dual heatsink design.
Thursday during CES 2011, Zalman introduced a new CPU cooler using a V-shaped dual heatsink design. Called the CNPS11X Extreme, the heatsink is made of pure copper and aluminum, weighs 600g and measures 135 (L) x 80(W) x 154(H)-mm.
According to the company, the V-shape design dramatically increases cooling performance by increasing the "Thermal Control Area" of the heatsink which in turn increases airflow and reduces noisy turbulence. The design also uses denser heatsink fins which prevent loss of surface area for maximum heat dissipation without sacrificing cooling efficiency.
The Zalman CNPS11X Extreme series CPU cooler also features the company's "Composite Heatpipe" design. This utilizes two combined components: a "Sintered Metal" type wick that generates outstanding capillary pumping performance, and the high thermal conductive design of the "Axial Grooves" which increases the heat transfer rate by 50-percent compared to ordinary heatpipes.
In addition to the design and custom heatpipe, Zalman's new V-shaped CPU heatsink also sports black-pearl nickel plating, an ultra-quiet 120-mm blue LED PWM fan, high-performance super thermal grease ZM-STG2M, and a heat dissipation area of 7,600-cm2.
Although Zalman did not provide pricing or availability, the heatsink joins other featured products at the show including the CNPS7X Performa/LED heatsink, the CNPS5X SZ, the Z9 and Z9 Plus chassis, the hefty-but-tasty GS1200 chassis and more.
All surfaces generate friction. Air traveling horizontally across the surface of the fin creates friction, which (I think) would generate turbulence. The shaping of the fins in the picture appears to lessen the amount of time that the air is blowing across the fins at the edges, so that should reduce turbulence. Of course, it has been over 20 years since I took a physics course, so I could be totally wrong. But I think that is what is going on.
If you did, that would be muy bueno!
Turbulence (and noise) occurs when ever any forces act on air to move or redirect it. Thats why the spinning fins of the fan are curved, to reduce this effect by making the redirection of air smoother. But when the air is blown out the other side of the fan, it is blown out in a spiral, not straight and perpendicular to the fan. And most heatsinks (if not all) have their cooling fins arranged perpendicular to the fan. So this causes another redirection of the air flow between the fins. And that causes most of the turbulence noise in my opinion, especially at higher fan speeds. I bet if the heatsink fins were designed with a curve at the side facing the fan, to gradually redirect the air flow, we would have even quieter coolers
The "V" shape is a dud idea, as the deadzone of the fan is the center of the fan where there is no air flowing through it. The air is however moved in a circular motion but due to the perpendicular fin array, the air flow is hampered. Instead of all these fin arrays, they should look up fan shrouds to help make a tunnel effect and get better air flow.
I guess, everyone happens to be pointing out the paper knowledge of their's....
Practically, I believe the company ain't full of fools to launch and inefficient HS certainly not one of the leading companies.
The fan the dead zone and what not seems to be discussed here, what you forget with the beauty of physics is that heat spreads onto the metal fins thus creating a negative pressure where the V shaped center is, causing and inward rush of cool air.... a sort of inverted mushroom.....
Easier to visualize I guess......
Looking forward to trying it out I guess....
kinda looks like a small block with the fan on top like a super charger
turbulence is
and it would be less effective. a turbulent flow over the fins is significantly more effective at removing heat. as the flow goes turbulent the thermal profile in the flow becomes linear due to mixing from the vortices. in a laminar flow the air directly between fins can only be heater by conduction which is a lot less effective than heating by convection. one of the first things you figure out in fluids and heat transfer is that loud heat sinks work much better but people would never tolerate the noise