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Re: [ESPResSo-users] Pressure Problem
From: |
Rudolf Weeber |
Subject: |
Re: [ESPResSo-users] Pressure Problem |
Date: |
Wed, 4 Jul 2012 07:37:15 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Hi,
On Tue, Jul 03, 2012 at 05:15:39PM -0400, Wozniak, Matthew C wrote:
> I'm a computatoinal physics student and I am learning to use ESPResSo by
> first studying the LJ-tutorial provided by the website. The tutorial
> simulates an LJ-system whose parameters cause it to operate near the triple
> point. When I analyze the total pressure during each sample, the pressure
> comes out to be negative. How can pressure be negative? Why are these
> pressures negative?
A negative pressure means that the system would contract, if you would let it
change volume.
Regards, Rudolf