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Showing results 1 to 13 of 13 Search took 0.00 seconds. Search: Posts Made By: LarsPT

Forum: OpenFOAM November 5, 2009, 11:20

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT Yes, I think it is possible. As q depends on the... Yes, I think it is possible. As q depends on the temperature gradient you can set a fixedGradient BC for the temperature T. Best regards Lars

Forum: OpenFOAM November 4, 2009, 06:36

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT Hi suitup, the properties for solid regions... Hi suitup, the properties for solid regions are defined in the time directories. K (capital letter) is the thermal conductivity, cp the specific heat capacity and rho is the density. With these...

Forum: OpenFOAM October 27, 2009, 08:15

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT Yes, that's right. I'm sorry that I didn't... Yes, that's right. I'm sorry that I didn't mention this explicitly. I'm just looking for a solution of that problem myself. There is one thread in this forum where the use of liquids is discussed but...

Forum: OpenFOAM October 25, 2009, 07:45

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT Hi Ronaldo, that's right. You can set the... Hi Ronaldo, that's right. You can set the BCs at the region interfaces either manually or define them in the changeDictionary file. If you have the abilities to run the case in parallel, I would...

Forum: OpenFOAM October 22, 2009, 05:28

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT The point in my case simply results from the... The point in my case simply results from the geometrie. My domain is of dimension 0.01x0.1x0.1m (x y z). The plate should have the dimensions 0.01x0.1x0.02m (x y z). So boxToCell (x0 y0 z0) (x1 y1...

Forum: OpenFOAM October 22, 2009, 04:42

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT Hi Ronaldo, the mentioned problem can be... Hi Ronaldo, the mentioned problem can be solved easily. As it simply says there is a cell which is part of two zones. If a cell is part of a particular zone depends on the position of the centre...

Forum: OpenFOAM October 20, 2009, 12:09

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT I didn't have the time to look in your case yet,... I didn't have the time to look in your case yet, but the way you described sounds very good. It has to be this way!

Forum: OpenFOAM October 19, 2009, 09:37

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT Yes, of course you can post your case and I'll... Yes, of course you can post your case and I'll have a look at it. But make sure that you post no information protected by any copyright laws! ;) As university courses start today I can't say when I...

Forum: OpenFOAM October 19, 2009, 08:54

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT Hi, first of all I have to confess that I... Hi, first of all I have to confess that I have never worked with fluent so far. So, I can't help at this point, sorry. The makeCellSets file is necessary to group cells which build a region....

Forum: OpenFOAM October 16, 2009, 08:08

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT It looks like a heat echanger, isn't it? Is the... It looks like a heat echanger, isn't it? Is the fin supposed to optimize the heat flux from the hot pipes to the air? Furthermore, there is one thing that is not clear to me. Is the air able to flow...

Forum: OpenFOAM October 15, 2009, 09:04

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT So, it's done. The problem is quite easy. There's... So, it's done. The problem is quite easy. There's a copper plate heated at the bottom. Over the plate there is air. I decreased mesh resolution because I calculated it on a cluster with 8 CPUs. ...

Forum: OpenFOAM October 15, 2009, 08:22

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT So, just give me some minutes to prepare my case... So, just give me some minutes to prepare my case as a tutorial which is easier to understand because it is 2D and has only tow regions. ;) Anyway, the folders in the constant folder are needed to...

Forum: OpenFOAM October 15, 2009, 06:47

Replies: 34 Heat Transfer Views: 6,348 Posted By LarsPT Hi Ronaldo, I think the chtMultiRegionFoam... Hi Ronaldo, I think the chtMultiRegionFoam solver is adequate for your problem. It solves the energy, navier-stokes and mass conversation equations separately for solid and fluid regions. I did...

Showing results 1 to 13 of 13

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