Interesting. Thanks for taking the time to explain and correct that
statement. I'll google "shear".

Neil.

On Sat, Apr 3, 2010 at 11:57 AM, Alistair Bell <albell@shaw.ca> wrote:
> that statement is wrong, and has perpetuated a misconception. One of VW's
> own docs says same, but research paper (linked on my site, written by an
> Audi/vw engineer) shows that the siloxane's viscosity does not increase with
> temp.
>
> its a shear thickening fluid, the shear is what does it, temp rise a by
> product.
>
>
> also, mohan (paper on my blog too) shows that smooth plates in a lab set up
> works just as well.
>
>
> the burrs might be involved at the hump stage (STA), but it has not been
> explained
>
> alistair
>
>
> On 3-Apr-10, at 11:19 AM, neil n wrote:
>
>
> Looking at the FAQ's on Vanagon page, I see that heat causes fluid to
> thicken. From that page: "VW says this happens as quickly as 1/4 turn
> of the spinning rear tire." I bet the burrs are like little paddles.
> w/o them would fluid not heat up as quickly?
>
>

--
Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines