temperature inside wall or solid

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BVSRL

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Jan 28, 2013, 3:51:50 AM1/28/13
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FDS Version:5.5.3_SMV_5.6

Operating System: Window XP SP3

details of the issue below:


I'm new user in this forum,


are beginner in the use of the program, 
and we are interested in understanding how the temperature is transmitted through a wall 
without openings,
dividing two local.


The scenario is the fire in Room 1, and no activity of fire and ventilation in the room 2



We need to evaluate the temperatures reached in a room without fire ( room 2 ),
alongside by a room with items that burn (room 1),
the two rooms are separated by a thin wall of brick.


We are also interested to measure the temperature inside the wall,
and understand how you can display the temperature at the surface of the wall 
on the opposite side of fire activity.


Ing. V. Lacroce


Thanks in advance
Here is my FDS input file

BVSRL

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Jan 28, 2013, 3:54:33 AM1/28/13
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fie example

marco_s

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Jan 28, 2013, 5:21:34 AM1/28/13
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Hi BVSRL,

the fds file is missing.
Anyway, the first thing you need to take care is the wall obstruction having the thickness of just one cell of the mesh.
Secondly, you probably need the adiabatic surface temperature on the wall; you can use the BNDF namelist group in order to get it.

Regards,

Marco


Il giorno lunedì 28 gennaio 2013 09:51:50 UTC+1, BVSRL ha scritto:

marco_s

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Jan 28, 2013, 5:28:34 AM1/28/13
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BVSRL

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Jan 29, 2013, 3:21:21 AM1/29/13
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questo è lo script ricostruito da istruzioni varie che stiamo cercando di far funzionare



&MESH ID='Mesh', IJK=760,575,260,   XB=0.0,15.2,  0.0,11.57,    0.0,5.29/


&OBST XB=   8.9,9.1, 2.52,12.48, 0.29,3.50,   SURF_ID='MURODIV'     /  Muro centrale





&DEVC XYZ= 7.48, 4.60, 2.5, QUANTITY='WALL TEMPERATURE',        IOR=+2,             ID='MURODIV'  7.48, 4.60, 2.5,  / 

&DEVC XYZ= 7.48, 4.60, 2.5, QUANTITY='INSIDE WALL TEMPERATURE', IOR=+2,   DEPTH=0.00, ID='INSIDE    7.48, 4.60, 2.5,  / 
&DEVC XYZ= 7.48, 4.60, 2.5, QUANTITY='INSIDE WALL TEMPERATURE', IOR=+2,   DEPTH=0.1,  ID='INSIDE    7.58, 4.60, 2.5,  / 
&DEVC XYZ= 7.48, 4.60, 2.5, QUANTITY='INSIDE WALL TEMPERATURE', IOR=+2,   DEPTH=0,15, ID='INSIDE    7.63, 4.60, 2.5,  / 
              

Victor Shestopal

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Jan 29, 2013, 3:26:46 AM1/29/13
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Dear authors of FDS6,
 
I notice there is no discussion of EVAC on this site.
I have no response to my questions either.
What is a right address to get an advice?
 
Regards,
 
Victor Shestopal
Australia
 

David Sheppard

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Jan 30, 2013, 7:51:16 AM1/30/13
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FDS will calculate heat conducted through an obstruction.  You need to define a Material with the thermal properties as shown in the Users Guide section 8.3.  To make the heat transfer occur through obstruction you have to add the parameter BACKING='EXPOSED' to the SURF line.
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