Discussion Forum

Posted: 1 decade ago Jun 1, 2011, 1:27 a.m. EDT

Hi add another "study" right click the root node, then change the shape function -- Good luck Ivar

Posted: 1 decade ago Jun 3, 2011, 6:58 a.m. EDT

[QUOTE] Hi add another "study" right click the root node, then change the shape function -- Good luck Ivar [/QUOTE] Hm, where can I find this root node?

Posted: 1 decade ago Jun 3, 2011, 4:05 p.m. EDT

Hi the root node is the first top level one the "root", it's worth to carefully read the doc, to learn the meaning of the COMSOL definition, there is also a nice glossary on the main web site, use the "search" (forget v4.0 and its doc, that was a too early version, the v4.1 doc is far better, the 4.2, I would say at least as good as the 3.5 (but adapted to v4 ;) -- Good luck Ivar

Posted: 1 decade ago Jun 4, 2011, 5:45 a.m. EDT

[QUOTE] Hi the root node is the first top level one the "root", it's worth to carefully read the doc, to learn the meaning of the COMSOL definition, there is also a nice glossary on the main web site, use the "search" (forget v4.0 and its doc, that was a too early version, the v4.1 doc is far better, the 4.2, I would say at least as good as the 3.5 (but adapted to v4 ;) -- Good luck Ivar [/QUOTE] Ok, I think I got it. Now I have two studies with different element types. I'm sure you know how to plot two line plots in one window? This would be the desired comparison for me ... Thanks!

Posted: 1 decade ago Jun 6, 2011, 10:48 a.m. EDT

Hi I believe you are looking for one plot node (pointing to "None" solution) and then you add two separate subplot nodes, one pointing to each solution -- Good luck Ivar

Posted: 1 decade ago Jun 12, 2011, 6:39 a.m. EDT

[QUOTE] Hi I believe you are looking for one plot node (pointing to "None" solution) and then you add two separate subplot nodes, one pointing to each solution -- Good luck Ivar [/QUOTE] Sorry I have no idee how this is working. I created two data sets - each containing a cut line from the two different solutions. Added two subplots (line graphs) corresonding to the two different cut lines but every time only one line plot is show. Obvioulsy this is not the way it's meant to be. Any suggestions? Thank you. Sebastian

Posted: 1 decade ago Jun 13, 2011, 3:53 p.m. EDT

Hi you efine the data to plot via the data set commands, as you say, but then the plots have several entries, you can define the original data set at the top plot node level, or chose "none" (first field) and then define thedata set in the different sub note plot commands, this way you get one plot windw, with different plots overlapped, aech from each data set (and not from the same one as if you kept the top plot node linked to a given data set) Hope this is clearer ;) -- Good luck Ivar

Posted: 1 decade ago Jul 2, 2011, 1:01 p.m. EDT

[QUOTE] Hi you efine the data to plot via the data set commands, as you say, but then the plots have several entries, you can define the original data set at the top plot node level, or chose "none" (first field) and then define thedata set in the different sub note plot commands, this way you get one plot windw, with different plots overlapped, aech from each data set (and not from the same one as if you kept the top plot node linked to a given data set) Hope this is clearer ;) -- Good luck Ivar [/QUOTE] Well, no it's not clearer. I'm sorry but I don't get it. Lets make it more clearer what I want (you will find the case attached). I want to calculate THREE different cases on ONE geometry: 1) with triangle elements and linear interpolation function 2) with triangle elements and quadratic interpolation function 3) with rectangular elemtens and quadratic interpolation function I don't know why I just need ONE model although the appropriate settings are defined there while having THREE different studies. At least this is how I read your posts. What I think needs to be done is ONE study (which will simply calculate the stationary solution) and THREE different models - each containing the above mentioned three meshes. Obviously I'm wrong on this part ... Lets go a step ahead: Visualization. I think once the question of model, cases and studies is clear maybe I can even comprehend the usage of the Data Set and stuff like that. I would appreciate if you can take a look inside the mode I have attached and maybe rearrange it so I can see how such a case SHOULD look like. Thanks Sebastian

Attachments:

• model.mph

Posted: 1 decade ago Jul 28, 2011, 4:16 p.m. EDT

[QUOTE] Hi you efine the data to plot via the data set commands, as you say, but then the plots have several entries, you can define the original data set at the top plot node level, or chose "none" (first field) and then define thedata set in the different sub note plot commands, this way you get one plot windw, with different plots overlapped, aech from each data set (and not from the same one as if you kept the top plot node linked to a given data set) Hope this is clearer ;) -- Good luck Ivar [/QUOTE] OK, forget my (quite frustrated) last post. No everthing is clear to me expect one thing. If I add another study ans change the discretization how can I know which study belongs to which discretization setting? Sebastian