groovyBC in openFoam 230
hi dear formers
i use groovyBC boundary condition im a case my T bc in a boun is : Code:
ceiling Code:
ceiling thanks alot |
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how to simulate a room with constant heat flux and groovyBC?
hi dear formers
excuse me i have a question about wall heat Flux i want to simulate a room with constant heat flux in it's wall i write my T folder by groovyBc but i dont have information about gradT and wallGrad T and wallHeatyFlux\what should i write in them? thanks |
Greetings imani,
I saw the PM you sent me and I came looking for any public questions you had made on this topic. Could you please provide more specific information? Because I'm not understanding what exactly you want or have already tried. Preferably it would be best if you could share an example case you're trying to configure. If you cannot provide your own case, use the tutorial case "heatTransfer/buoyantPimpleFoam/hotRoom" from OpenFOAM and modify it the same way you've modified yours. Best regards, Bruno |
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hi again
it is my T folder i have a room that i hav constant heat flux from it's wall and i have two windows with constant heat flux my windows have 2mm gap that air input from it to room Code:
/*--------------------------------*- C++ -*----------------------------------*\ |
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Anyway: You can remove a bit of redundancy by reusing similar information (but that is not groovyBC-specific, but general OpenFOAM): Code:
fixedWall-2 |
please answer me
hi dear formers
it is fixed flux bc for temperature Code:
/*type groovyBC; what should be k? what is the scale of it? q is w/m2 in other words the scale of gradientExpression or fixedGrdaient in openFoam is "k" or "k/m" thanks |
wallHeatFlux
hi dear formers
i ave one question about constant wallHeatFlux bc i am modelling a computational room with negative constant heat flux in it's walls by groovyBC but when i check my results i saw that temperature distribution not change and is like the initial condition for temperature... for different heat fluxes i have same results where is my mistake? my solver is buoyantBossinesqueSimpleFoam and my bc for one of walls is like bellow: Code:
type groovyBC; imani |
is there no one to help me?
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hi dear baran
excuse me that i ask a question i want to simulate heat transfer from a wall wth constant heat flux my solver is buoyantBossinesqueSimple Foam but when i use this bc....the temperature of room for every heat flux is equal initial condition .... i use this two bc for constant heat flux Code:
type turbulentHeatFluxTemperature; Code:
type groovyBC; |
Greetings to all!
@Imani: It is considerably hard to help you when you're posting in so many threads and providing insufficient information on each thread. If you had followed the instructions given on this thread: http://www.cfd-online.com/Forums/ope...-get-help.html - I believe we would have already been able to help you several weeks ago. I've moved all of your posts on this topic into this single thread, so that it would make it a bit easier to diagnose what's going on. Unfortunately, the combined amount of information you've provided is only very basic. Therefore, me or anyone else who doesn't have a similar case, will have to create my/his/her own test case to try and figure out what you might be doing wrong. If in the next 24 hours you can follow the instructions indicated here: http://www.cfd-online.com/Forums/ope...-get-help.html - then I can still help you this weekend. If not, I will only be able to try and create my own test case next weekend, namely in 7 days time. Best regards, Bruno |
Dear Zohreh,
As Bruno told try to be more specific about your problem. The procedure is quite simple, If I could understood correctly you can do this simply by: Code:
type fixedGradient; Value of 100 is chosen for sample. |
thanks dear mojtaba
i want to simulate heat transfer in aroom with baseBoard heating system baseboard has positive constant heat flux and my walls have negative constant heat flux i used groovy BC boundary condition that is similar fixedGradient but i dont know why my temperature profile is wrong when i run with 100 heatFlux my temperature profile in room is similar for the case that flux=1000 or 150 or 300 just difference between these case is that my skiriting surface temperature for higher fluxes is bigger!!!! thanks alot for your attention |
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Well so many things van cause such problems. As I understood again there is no need for groovyBC (Of course it is a lot more capable than this), Try simplify your case. I am not sure what skirting temperature is. If you can, share your case to see if I can take a look at it. Best. |
1 Attachment(s)
ok i send my case
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1 Attachment(s)
hi ok i send you my case
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internt have problem
i will send you soon |
1 Attachment(s)
ok
now i send all |
Greetings to all!
I've had this thread on my to-do list for a long time already and only today did I manage to finally look into it. But it's been so long, that I have to ask: Motjaba and Imani, have Imani's questions already been solved in private conversations? Best regards, Bruno |
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