Thermal Analysis of Transparent Window 1

[kellnerp]

Has anybody setup an analysis of a transparent window, that is a window that is transparent to some wavelengths and absorptive of others? This is in the context of radiative heat transfer.

TOP
CSWP, BSSE

http://www.engtran.com

http://www.niswug.org

http://www.linkedin.com/in/engineeringtransport

Phenom IIx6 1100T = 8GB = FX1400 = XP64SP2 = SW2009SP3
"Node news is good news."

 

[IRstuff]

What's the difficulty in doing so?

TTFN

FAQ731-376
Chinese prisoner wins Nobel Peace Prize

 

[kellnerp]

Not sure how that answers my question.
Have you done thermal FEA analysis of windows as I have described?

TOP
CSWP, BSSE

http://www.engtran.com

http://www.niswug.org

http://www.linkedin.com/in/engineeringtransport

Phenom IIx6 1100T = 8GB = FX1400 = XP64SP2 = SW2009SP3
"Node news is good news."

 

[btrueblood]

"Not sure how that answers my question."

Given that a complete and concise answer to your question could be a simple yes or no, and the real question (the one you didn't post) is likely "how did you do it", which requires a pretty long book-like response that most people are unlikely/unwilling to write...

...his response is a polite way of saying "what have you tried so far, where are you having trouble, what code is available to you" and so on. I.e. come back with a little more description of your problem, in as much detail as you can muster, and maybe we can actually give you some useful advice.

 

[kellnerp]

Thanks for the advice.

Answering yes or no in no way commits anyone to additional response.
If I answer your guesses at my questions the answers are:
nothing
not
don't know yet

I am not asking for a detailed howto, that's what documentation is for.
I am not asking for a tutorial in heat transfer, that's what text books are for.

How about my rephrasing the question:

Has anybody setup an FEA heat transfer analysis of a transparent window, that is, a window that is transparent to some wavelengths and absorptive of others and if so with what code?

That question should require no more that 30 characters of typing to answer and would be appreciated.

TOP
CSWP, BSSE

http://www.engtran.com

http://www.niswug.org

http://www.linkedin.com/in/engineeringtransport

Phenom IIx6 1100T = 8GB = FX1400 = XP64SP2 = SW2009SP3
"Node news is good news."

 

[IRstuff]

OK, Mathcad

TTFN

FAQ731-376
Chinese prisoner wins Nobel Peace Prize

 

[kellnerp]

Must be a hoot. MathCad is not in and of itself an FEA package. Do you write your own routines?

TOP
CSWP, BSSE

http://www.engtran.com

http://www.niswug.org

http://www.linkedin.com/in/engineeringtransport

Phenom IIx6 1100T = 8GB = FX1400 = XP64SP2 = SW2009SP3
"Node news is good news."

 

[IRstuff]

Yes, I wrote my own.

TTFN

FAQ731-376
Chinese prisoner wins Nobel Peace Prize

 

[kellnerp]

How does it do on a million dof problem?

TOP
CSWP, BSSE

http://www.engtran.com

http://www.niswug.org

http://www.linkedin.com/in/engineeringtransport

Phenom IIx6 1100T = 8GB = FX1400 = XP64SP2 = SW2009SP3
"Node news is good news."

 

[IRstuff]

That wasn't my problem to solve, nor do I ever expect that a million DOF problem would ever come across my desk.

TTFN

FAQ731-376
Chinese prisoner wins Nobel Peace Prize

 

[btrueblood]

I'd have to say Mathcad also. Though I could probably do quite a bit of it in Excel even. And yes, I've done thermal radiation (with internal generation) using FEA in Excel before. No, not a million DOF, I was able to resolve my problem to 10 nodes and get the answers I needed, to the required degree of accuracy.

I don't know of an off-the shelf FEA product that handles variable transmissibility, or even transparent objects in general. Then again, I'm not an optics guy.