Re: Thermal radiation heat transfer between surfaces

Thank you Panos. My geometry is rather simple, so I suppose I will try
calculating the integrals as you suggested.

Best,

Pawel


czw., 9 kwi 2020 o 23:22 Panagiotis Zestanakis <[email protected]>
napisał(a):

> Dear Pawel.
>
> In order to compute a surface integral, first you should parametrize your
> surface and express it as a double integral.
> A similar procedure is followed for example in eq.30 in the document.
>
> After that, `dbquad`, `tpquad` or `nquad` from scipy.integrade should do
> the job.
>
> In case your surface is composed of distinct polygons, maybe you should
> consider replacing the integral with a sum.
> I hope this helps.
>
> Best,
>
> Panos
>
> On Thu, Apr 9, 2020 at 10:29 PM Paweł Kwaśniewski <[email protected]>
> wrote:
>
>> Dear SciPy community,
>>
>> I'm a bit stuck trying to simulate heat transfer by radiation only
>> (elements in a vacuum chamber). The problem involves calculating the so
>> called view factor (well explained in section 4 of
>> http://mafija.fmf.uni-lj.si/seminar/files/2015_2016/Thermal_radiation_heat_transfer_between_surfaces_Luka_Klobucar.pdf),
>> which is a double surface integral. I was hoping to find some ready Python
>> code, but I failed. Maybe someone is aware of either heat transfer
>> calculation libraries in Python or just 3D view factor calculations? If
>> not, maybe some hints on numerical calculations of surface integrals in
>> Python? I've found view3d
>> <https://sourceforge.net/p/view3d/code/HEAD/tree/trunk/README.txt#l48>,
>> but the code is rather outdated and I'm struggling to compile it (I tried
>> Windows 10, Archinux, Ubuntu, but I'm an amateur in software building).
>>
>> Best,
>>
>> Pawel
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