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Re: [TRNSYS-users] Fwd: RADIATION
Kiki,
It is usefull if you give more info (type numbers for example). But,
generally, such 'safety' can be added for numerical stability. This can have
to do with differences between reals and integers. 0 can for example be
approaximated by an integer equal to -0.0000000000000...0x. If the next
component cannot handle such value (for example because of a square of that
value) the equation you mention avoids that an imaginary number appears
which might have caused instability otherwise.
The other thing in your question ... radiation can be negative. If the
thermal flux between a cold and warm surface in visible contact is
described... It just depends on your definition...
I hope this solves your question!
Regards,
Leen
----- Original Message -----
From: "kiki siouna" <kiki_siouna@yahoo.com>
To: <trnsys-users@cae.wisc.edu>
Sent: Friday, January 30, 2009 11:36 PM
Subject: [TRNSYS-users] Fwd: RADIATION
Note: forwarded message attached.
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