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David,
With the 'identical' option, from what I understood
from the manual, what you do is to impose the condition that the convective
fluid in the back of the surface has the same temperature as the 'star
temperature' from the front of the surface. In this way you create an adiabatic
plane INSIDE the wall, but not on the back surface (there are non nule heat
flows at both sides of the wall). What I was wondering is whether you can impose
an adiabatic condition straight on the BACK surface of the wall.
Regards,
Xavier
----- Original Message -----
Sent: Thursday, December 02, 2004 5:26
PM
Subject: Re: [TRNSYS-users] Adiabatic
boundary wall in TYPE56
Dear Xavier,
With a BOUNDARY wall, you have the
option of defining the temperature on the other side of the wall as
"userdefined" (either an input, a constant value, or a schedule) or as
"identical." To define an adiabatic wall, simply set the boundary temperature
to "identical"
Kind regards,
David
At 10:14 AM 12/2/2004,
Xavier García Casals wrote:
Hi,
Is
there a direct way to specify an adiabatic boundary wall in TYPE56?. From
what I could find in the documentation, only boundary walls with a boundary
temperature may be deffined. In principle setting a very small wall
convection coefficient (HBACK) would fisically lead to an adiabatic
condition, but from the manual it seems it leads to the oposite (wall
temperature equal to boudary temperature). Two aproximations I can think of
are to specify the identical condition, in which case an adiabatic plane
would apear WITHIN the wall, or specifying a layer with a very high
resistence at the outer side of the wall. But is there not a way to specify
the boundary adiabatic condition
straight?
Regards,
Xavier
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