Date:         Sat, 3 Apr 2010 11:57:48 -0700
Reply-To:     Alistair Bell <albell@SHAW.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Alistair Bell <albell@SHAW.CA>
Subject:      Re: VC fluid - take a chance on this
Comments: To: neil n <musomuso@GMAIL.COM>
In-Reply-To:  <q2uc4e7c5f91004031119z1ae34edbg995b54b383fe63aa@mail.gmail.com>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

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?