Dear Juan,
With the defined network, you can calculate the flow in either of two cases:
- external pressure; induced by wind. For this calculation you need
cimatic data including wind speed, and you need to define pressure-
coefficients at each external surface
- due to thermal buoyancy; in order to get a (small) flow the cracks
should be at different heights to induce a thermal stack.
In order to get a flow large enough to cool the hot zone you probably need
a large opening instead of a crack.
(Furthermore: dont forget to use Type56TRNFLOW instead of the
standard Type56, and dont forget to switch the input TRNFLOW to 1.)
regards, Arie
-----Oorspronkelijk bericht-----
Van: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Namens [EMAIL PROTECTED]
Verzonden: dinsdag 6 maart 2007 23:32
Aan: [email protected]
Onderwerp: [TRNSYS-users] Help with TRNSFLOW
Hello, I am Juan jesús and write to you from Spain.
I need help with TRNSFLOW. To begin, for some reason the example that
has the program has some mistake and I would like that you were
sending yours this one and if you can someone more in order that I was
helping myself.
I have started creating a simple example, after reading the manuals,
but I have problems to do a coherent net.
Only I want to take advantage of the air of the face North of a
building to cool that of the face South.
The net that I have created consists in:
External Node + Crack + Thermal zone A + Crack + Thermal zone B +
Crack + External Node....
In a beginning what I do is to simulate without defining the air net
and seeing the values of the temperatures in the zones. And later I
realize this net of air flow and observe that there are no variations.
That I am doing badly?. Thank you very much
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