Temperature field in Natural Ventilation

[robyrai]

Can anybody suggest idea or webpage so that I can make proper settings to the natural ventilation model that I am attempting to work with. If you see the attached image, there is a velocity field map on the XY plane and a temperature field on the XZ plane. I have only entered the temperature, air velocity as boundary condition (BC) in the inlet of the model. I have few electrical appliances inside the building. I applied heat flux BC to those appliances, but I am not able to see any change in the air inside the building, or is it usually negligible. And, how do we take solar radiation into account, I know we have to turn on the radiation 'on' option in solve window, but how can we be specific with a location? Thank you in advance.

[Jon.Wilde]

The internal BC's, are you assigning these to a surface or a volume? 

Do you have a P=0 at the outlet?

Once you have radiation on, you can then enable Solar Loading and set up the model orientation and sun's position.

Do you have gravity on?

Thanks,

Jon

[robyrai]

Thanks Jon for such a quick response. I have the P=0 at the outlet. I can now set up the solar setting. I have the gravity on. Apart from that, can we check or show effective cooling caused by the wind flow in the model? I was unable to see any temperature gradient (in the final temperature map of results that can be seen in the first post's in text image) inside the building I am working on. I hope you understand my point. I am attaching my file, please take a look at this and help me. This study is for an educational purpose only.

[robyrai]

I don't have internal BCs. Do I have to? I don't have idea about internal BCs.

[Jon.Wilde]

No problem.

We would need a support file (CFZ) to view your set up.

You do have internal BC's as you said you have heat loads 🙂

Are these assigned to volumes? They do need to be, rather than surfaces.

Cheers,

Jon