[esp-r] Re: CFD problem

[Hall,Monika]

Dear Nalin,

In your file the cfd is not connected to the air flow net, because after the pressure 1.52/0.00 there is no corresponding connection to the air flow net. Maybe you need to set the pressure in the air flow net and use the cfd only for a better calculation and to make "coloured" pictures.

I sent you an old cfd-file. This file was working, but the controls were set in the afn/plt file (fan on/off and temperature of the inlet air). I used the cfd for making "coloured" pictures (distribution for air temperature and air velocity). Unfortunately I did not write down what I have done. 

The numbers 3,4,11 are the conflation types: turbulence model, handshaking or not, etc. This is the way cfd correspons with the thermal zone.
You will find the models in a paper of Ian Beausoleil-Morrison (table 1):

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V2V-45VCJM3-6&_user=6562768&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000070066&_version=1&_urlVersion=0&_userid=6562768&md5=6f032decf834621b14376615c8977ba9

What is what you have to find out of you own. As I remember, you can't combinate each type with each type. I do not know if there is a conflation type 0. 

Regards
Monika




-----Ursprüngliche Nachricht-----
Von: NALIN SWAROOP [mailto:nalin_swaroop at iitb.ac.in] 
Gesendet: Montag, 4. Mai 2009 12:21
An: Hall,Monika
Cc: Aizaz Samuel; esp-r at lists.strath.ac.uk
Betreff: Re: [esp-r] Re: CFD problem

Dear Monika

The problem is not with the walls, I have conflated the CFD defined walls with the construction Walls and it works fine but if I try to conflate the openings with the network flow connection it gives the error "cells are not compatible with chosen face please redefine" I have again attached the CFD definition file the lines which define the airflow are not changed because ESP-r gives the above mentioned error.

Regards

Nalin







> Dear Nalin,
>
> Did you have tried a conflation of the walls like that?
>
> # Solid boundary conditions.
> *solids
> Wall3        Temp  25.00   | Confl   4  wallx
> Wall4        Temp  25.00   | Confl   3  wally
> Wall5        Temp  25.00   | Confl   11  wallz
>
>
> The walls created in cfd must related to the walls in the zone-model: p.e.
> wallx, wally and wallz
> But I don`t know  what are the numbers 4, 3, 11 for.
>
> Regards
> Monika
>
>
> -----Ursprüngliche Nachricht-----
> Von: esp-r-bounces at lists.strath.ac.uk
> [mailto:esp-r-bounces at lists.strath.ac.uk] Im Auftrag von NALIN SWAROOP
> Gesendet: Montag, 4. Mai 2009 08:39
> An: Aizaz Samuel
> Cc: esp-r at lists.strath.ac.uk
> Betreff: [esp-r] Re: CFD problem
>
> I changed the lines
>
> Open1        Whole    6  25   1   1  11  20
> Open2        Whole    6  25  25  25  11  20
>  to:
> Open1        South    6  25   1   1  11  20
> Open2        North    6  25  25  25  11  20
>
> and now grid error is not coming but still I am not able to do the CFD 
> and air flow network conflation every time I try to define the 
> boundary condition for open1 or open2 and choose the connections from 
> network flow it gives the error that "cells are not compatible with 
> chosen face please redefine"
>
> Please help
>
> Nalin
>
>
>
>
>
>
>
>
>
>
>> Nalin,
>>
>> In the cfd file change the following lines:
>> Open1        Whole    6  25   1   1  11  20
>> Open2        Whole    6  25  25  25  11  20
>>
>> to:
>> Open1        South    6  25   1   1  11  20
>> Open2    %2
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