I think you have a little circular logic in that one Joe! I think it is the
viscosity of the fluid as it is stirred in a system rather than the
squeezing that causes it to heat up and expand.
Mark
-----Original Message-----
From: Joe Curry [mailto:spitlist@gte.net]
Sent: Thursday, June 21, 2001 2:00 PM
To: Randall Young
Cc: wallaces@superaje.com; triumphs@autox.team.net
Subject: Re: Hydraulics
Randall,
Actually, fluids can expand as they are compressed. Here's how it works:
1. Compression causes heat.
2. Heat normally expands.
Of course, different fluids are affected differently by compression and
Hydraulic fluids are typically selected because of their properties to
resist
compression and expansion.
Joe
Randall Young wrote:
>
> Yeah, right. Except that the second line of the very first chapter has a
> technical error :
>
> > Pressure can cause an expansion ... of a fluid that is being squeezed.
>
> I think the author meant 'compression', not expansion. The only fluid
that
> I can think of that expands when you squeeze it is nitroglycerin, and I
> don't think that's quite what he had in mind <g>
>
> Randall
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