[deal.II] Installing BLAS and LAPACK on native windows

2020-01-07 Thread Craig Branch 
Has anyone installed BLAS and LAPACK on native windows. I’m using visual 
studio 2019 this compiles but I can not get beyond the basic install 
without these libraries.

Thanks

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Re: [deal.II] Application for the use in continuum mechanics

2020-01-07 Thread Jean-Paul Pelteret 
Well, I’m just a little late to reply, but better that than never…

As Wolfgang said, if you want the absolute minimum amount of work to do to 
assemble a local system contribution when considering hyper elastic materials, 
then you can use the
Differentiation::AD::EnergyFunctional 

 class to compute the residual and its linearisation for linear or hyper 
elastic materials. We also have a test in the test suite 

 that reimplements step-44 using this technique. There’s also this code gallery 
example 

 that shows the same problem (finite strain non-linear elasticity) implemented 
fully by hand, and using 2 variations of automatic differentiation.

I hope that this helps.
Best,
Jean-Paul

> On 16 Aug 2019, at 19:18, Wolfgang Bangerth  wrote:
> 
> On 8/16/19 2:57 AM, Lukas Lamm wrote:
>> 
>> thanks for your response. I was actually searching for some application 
>> somehow similar to FE software like e.g. FEAP or Deadalon, where you can 
>> e.g. easily implement any desired material model but do not have to care 
>> about the whole assembly and solution process. At least not if you do 
>> not explicitly want to. Writing it by myself would not be a problem I 
>> guess, but would still be some effort. Therefore, I thought that maybe 
>> someone alse is already working on such a package and I could 
>> participate in the development process.
> 
> I suspect that he will chime in himself at some point, but you may also 
> want to look at the functionality Jean-Paul Pelteret has implemented for 
> the last release that allows you to just specify a stored energy and 
> then get the residual and Newton matrix out of this by automatic 
> differentiation. You should be able to find this in the AD namespace. 
> The classes there have many example code snippets.
> 
> Best
>  W.
> 
> -- 
> 
> Wolfgang Bangerth  email: bange...@colostate.edu
>www: http://www.math.colostate.edu/~bangerth/
> 
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Re: [deal.II] Monolithic coupling, staggered coupling, multiphysics capabilities

2020-01-07 Thread Jean-Paul Pelteret 
To add to what Wolfgang said, there are a multitude of papers in our 
publication list
https://dealii.org/publications.html 
that mention electro-active polymers and magneto-active polymers. You might 
wish to look there to see what has been accomplished in these research areas 
using deal.II.

Best,
Jean-Paul


> On 08 Nov 2019, at 05:25, Wolfgang Bangerth  wrote:
> 
> On 11/7/19 2:32 PM, Saman Seifi wrote:
>> 
>> So I have developed an explicit-implicit staggered model for studying 
>> electro-active polymers under electrical or/and mechanical loading. I 
>> already 
>> coded the model in Tahoe (an old C++ FE code from SANDIA) and published the 
>> result. I want to implement the same formulation in deal.ii, but I'm not 
>> sure 
>> how to do it. Is anyone have any experience in coding any multiphysics 
>> models? 
>> monolithic implicit, staggered implicit-implicit, or explicit-implicit?
> 
> There are many examples of multiphysics codes out there (you might want to 
> look at Thomas Wick's Fluid-Structure Interaction code, for example, that was 
> published in the Archive of Numerical Software). So it's possible for sure.
> 
> You might have more luck on this mailing list if you asked concrete questions 
> about issues you're stuck with. There is no good answer to "I'm not sure how 
> to do it" :-)
> 
> Best
>  W.
> 
> 
> -- 
> 
> Wolfgang Bangerth  email: bange...@colostate.edu
>www: http://www.math.colostate.edu/~bangerth/
> 
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Re: [deal.II] SOS - UNABLE to complete coding assignment 1 of Coursera - problems with UMFPACK - sparsity issues

2020-01-07 Thread Jean-Paul Pelteret 
Hi Jordi,

Indeed, it is as Wolfgang says. Unfortunately none of the developers know this 
course, or how to what extent deal.II is used in it. It was good timing that I 
was able to help you out during the vacation period (and you’re most welcome 
for that, if it did assist you), but time is limited for me and, I guess, the 
other developers. I choose to devote whatever time resources I have to the user 
group so, as Wolfgang stated, any deal.II specific questions are welcome and 
we’ll strive to answer them. But it’s simply not possible (for me, at least) to 
answer questions here, continue to contribute code to the project, and carry 
about one's daily business. You can of course continue to engage with the 
community, as its clear that there are some other people that use deal.II and 
have done this course. But please keep in mind that we do have a set of 
guidelines  for the 
nature of the discussion that we like to see on our forum.

I know that’s not the answer that you were hoping for, but I’d guess that its 
one that you’re not too surprised to hear — sorry about that. But I hope that 
you endeavour to carry on with the course and work through the coding tasks. 
Best of luck with it all.

Jean-Paul


> On 06 Jan 2020, at 20:52, Wolfgang Bangerth  wrote:
> 
> On 1/3/20 4:16 PM, Jordi Parra Porcar wrote:
>> 
>> To be honest I start thinking that starting this Coursera course was a 
>> mistake. The majority of the questions have no answer, people asking many 
>> times and no answer... that a pitty!, this assignment has already turned 
>> into 
>> something personal indeed XD. So far I have been able to exchange some mails 
>> with professor Garikipati but, otherwise my questions would simply left 
>> without answer in the course forum. It seems to me I am the only one 
>> following 
>> this course nowadays XD. anyway... I really appreaciate that you use some 
>> time 
>> to asnwer me :) actually I have other questions that I posted in the 
>> Coursera 
>> forum, I will give some time to Prof. Garikipati to answer but, looks that 
>> there should me some "course moderators", I do not understand it. If I do 
>> not 
>> get some answers from coursera could I ask you something else regarding this 
>> coding assignment? it is just I have some other doubts... anyway Jean-Paul, 
>> thank you in advance!
> 
> Jordi,
> I think we all regret what you state above. But just as a point of 
> clarification: None of the principal developers (or anyone else who typically 
> answers questions here) have anything to do with the Coursera course. We can 
> of course help with deal.II-specific questions, but we don't know the course 
> materials nor the assignments.
> 
> Best
>  W.
> 
> -- 
> 
> Wolfgang Bangerth  email: bange...@colostate.edu
>www: http://www.math.colostate.edu/~bangerth/
> 
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[deal.II] Re: Windows Linux Subsysytem - using the linux libraries

2020-01-07 Thread Craig Branch 
>From what I have read there is an issue with c++ and name mangling between 
compilers so there may be no way to do this. If there is a way let me know. 
Thanks

On Tuesday, January 7, 2020 at 3:11:57 PM UTC, Craig Branch wrote:
>
> Hi, I have successfully installed dealii using Visual Studio 2019 and also 
> the Windows Linux Subsystem (WLS). The WLS worked eventually and I will 
> post some commands that will help new users. I used Ubuntu 18.04 and needed 
> to install  cmake, g++, libblas-dev and liblapack-dev before it when 
> smoothly.
>
> The question I have is can I compile within WSL(Ubuntu) using cmake/make 
> and g++ compiler and make the dealii build and libraries then use these 
> libraries and headers within Visual Studio and link against them but 
> compile with the native VSC++ compiler. That is make dealii/build on Linux 
> but use native visual studio for everything else.
>
> I realise its a long shot but I have code already in native windows so 
> this would be my most robust and easiest option if it could worked. 
> Otherwise I will need to continue with the Native Windows dealii build and 
> at present I haven't got blas or lapack working on this.
>
> Thanks
>
> Craig 
>

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Re: [deal.II] Re: Fixed Support for 2D Beam Problem

2020-01-07 Thread David Wells 
Happy to help!

On Tue, Jan 7, 2020 at 1:42 PM Mohammed Hassan  wrote:
>
> Hi David,
>
> Yes, I fixed the mesh file and it works fine for the stage of meshing, next I 
> will to try to play with Boundary conditions. Many thanks for your support.
>
> Regards,
>
> On Tuesday, December 10, 2019 at 4:35:20 PM UTC+1, Hasan Tasneem wrote:
>>
>> I am a beginner on Deal.ii. I have installed and run some of the tutorials. 
>> I am now trying to run one specific problem. This problem is 2D and is a 
>> beam problem. My dimension of the beam is 3*100mm. The beam is fixed on one 
>> end and there is 1000N of transverse loading on the other end. I am 
>> following Step-8 which solves an elastic equation. Everything I have 
>> inputted correctly. However, I am stuck on applying the fixed support. I 
>> want the fixed support at x equal to 0. I don't know how to proceed further.
>>
>> VectorTools::interpolate_boundary_values(dof_handler,
>> 0,
>> Functions::ZeroFunction(dim),
>> boundary_values);
>> MatrixTools::apply_boundary_values(boundary_values,
>> system_matrix,
>> solution,
>> system_rhs);
>>
>> How should I alter this to get fixed support at x equal to 0.
>>
>>
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[deal.II] Re: Fixed Support for 2D Beam Problem

2020-01-07 Thread Mohammed Hassan 
Hi David,

Yes, I fixed the mesh file and it works fine for the stage of meshing, next 
I will to try to play with Boundary conditions. Many thanks for your 
support.

Regards,

On Tuesday, December 10, 2019 at 4:35:20 PM UTC+1, Hasan Tasneem wrote:
>
> I am a beginner on Deal.ii. I have installed and run some of the 
> tutorials. I am now trying to run one specific problem. This problem is 2D 
> and is a beam problem. My dimension of the beam is 3*100mm. The beam is 
> fixed on one end and there is 1000N of transverse loading on the other end. 
> I am following Step-8 which solves an elastic equation. Everything I have 
> inputted correctly. However, I am stuck on applying the fixed support. I 
> want the fixed support at x equal to 0. I don't know how to proceed 
> further. 
>
> VectorTools::interpolate_boundary_values 
> 
> (dof_handler,
> 0,
> Functions::ZeroFunction 
> 
> (dim),
> boundary_values);
> MatrixTools::apply_boundary_values 
> 
> (boundary_values,
> system_matrix,
> solution,
> system_rhs);
>
> How should I alter this to get fixed support at x equal to 0. 
>
>
>

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Re: [deal.II] Using deal for induction heating

2020-01-07 Thread David Wells 
Hi Masod,

Welcome to the project!

The project works on Windows with the WSL and also with Microsoft's own
toolchain (visual studio and MSVC): see
https://github.com/dealii/dealii/wiki/Windows
for notes on how to do it. Most of the developers use Linux; I recommend
using Linux for this reason.

Thanks,
David Wells


On Tue, Jan 7, 2020 at 10:21 AM masod sadipour 
wrote:

> Hello dear Dr.  Wells,
> I am a graduate research assistant. I have recieved a project which I
> should solve the advection-diffusion equation using by deal.ii ASAP.
> Could you please let me know about the possibility of using deal.ii by
> windows. Should I do it just in Linux?
> BR.
>
>
> On Tue, Jan 7, 2020 at 6:42 PM David Wells  wrote:
>
>> Dear Andreas,
>>
>> This is a specialized application domain; I am not sure if anyone here
>> has done induction heating but I will do my best to try and point you in a
>> useful direction.
>>
>> 1. I don't think we have any examples in the documentation about how to
>> solve this problem. However, there are other examples of heat transfer in
>> papers citing deal.II: check out the list at
>> https://dealii.org/publications.html
>> 2. For electromagnetism you probably want to use the Nedelec_SZ element.
>> These elements tend to be very complicated so it is probably best to use
>> one that is already in the library.
>> 3. I don't know how to couple the electromagnetic field to the thermal
>> problem.
>>
>> Thanks,
>> David Wells
>> 
>>
>>
>> On Tue, Jan 7, 2020 at 4:34 AM Andreas Gschwentner <
>> gschwentner.andr...@gmail.com> wrote:
>>
>>> Dear deal.II community,
>>>
>>> i am working on my master thesis (MU Leoben, Austria) with the general
>>> topic "simulation induction heating". I want to try out a new program and
>>> want to use deal.II for the simulation (I have no experience with this
>>> program). Concerning this matter i have some question about deal.II:
>>>
>>>
>>>- First of all, has someone experience with this kind of problem? Is
>>>there a topic in the doc about simulation induction heating?
>>>- The second question is about the elements. What kind of element
>>>formalism is used for the simulation of electromagnet fields, or is it
>>>possible, to implement new elements?
>>>- The third question is about the coupling schemes for coupling the
>>>electromagnetic with the thermal problem. Usable coupling schemes for 
>>> this
>>>problem?
>>>
>>> Many thanks for your help.
>>>
>>> Best regards
>>> Andreas
>>>
>>>
>>>
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>>> 
>>> .
>>>
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>> 
>> .
>>
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[deal.II] deal.II Newsletter #105

2020-01-07 Thread Rene Gassmoeller 
Hello everyone!

This is deal.II newsletter #105.
It automatically reports recently merged features and discussions about the 
deal.II finite element library.


## Below you find a list of recently proposed or merged features:

#9250: Update the discussion of HDF5 and R scripting in step-3. (proposed by 
bangerth) https://github.com/dealii/dealii/pull/9250

#9249: Replace Threads::mutex by std::mutex (proposed by masterleinad) 
https://github.com/dealii/dealii/pull/9249

#9248: Mark 'Possibilities for extensions' as . (proposed by bangerth) 
https://github.com/dealii/dealii/pull/9248

#9247: Fix description of a test. (proposed by bangerth) 
https://github.com/dealii/dealii/pull/9247

#9246: fixes a typo in function name. Replace make_grid_and_dofs() with just 
make_grid() (proposed by krishnakumarg1984) 
https://github.com/dealii/dealii/pull/9246

#9245: Document out of memory issues with 'make -jN'. (proposed by bangerth; 
merged) https://github.com/dealii/dealii/pull/9245

#9244: jenkins: increase OSX timeout (proposed by tjhei; merged) 
https://github.com/dealii/dealii/pull/9244

#9242: replace some instances of Threads::Mutex with std::mutex (proposed by 
rezarastak) https://github.com/dealii/dealii/pull/9242

#9241: Mark some input arguments as 'const'. (proposed by bangerth; merged) 
https://github.com/dealii/dealii/pull/9241

#9240: Turn all for loops using "begin_active" into ranged-based ones (proposed 
by masterleinad) https://github.com/dealii/dealii/pull/9240

#9239: config.h: remove old p4est version logic (proposed by tjhei; merged) 
https://github.com/dealii/dealii/pull/9239

#9238: Remove reference to the IA64 architecture. (proposed by bangerth; 
merged) https://github.com/dealii/dealii/pull/9238

#9237: make MueLu optional in Trilinos (proposed by tjhei) 
https://github.com/dealii/dealii/pull/9237

#9236: Augment the documentation of GridGenerator::simplex(). (proposed by 
bangerth; merged) https://github.com/dealii/dealii/pull/9236

#9235: Augment the UMFPACK error message. (proposed by bangerth) 
https://github.com/dealii/dealii/pull/9235

#9234: doc: minor GridGenerator changes (proposed by tjhei; merged) 
https://github.com/dealii/dealii/pull/9234

#9233: Remove cryptic comment (proposed by masterleinad; merged) 
https://github.com/dealii/dealii/pull/9233

#9231: Simpler CellwiseInverseMassMatrix::apply() function (proposed by 
kronbichler) https://github.com/dealii/dealii/pull/9231

#9230: Fix two bugs in matrix-free code (proposed by kronbichler; merged) 
https://github.com/dealii/dealii/pull/9230

#9229: Return error code from indent-all in check_indentation.sh (proposed by 
masterleinad; merged) https://github.com/dealii/dealii/pull/9229

#9228: fixes a typo in step-3 tutorial doc (convergence topic in 
results/extensions) (proposed by krishnakumarg1984) 
https://github.com/dealii/dealii/pull/9228

#9225: fix a doxygen citation (proposed by tjhei; merged) 
https://github.com/dealii/dealii/pull/9225

#9224: Replace some DEAL_II_WITH_P4EST with DEAL_II_WITH_MPI (proposed by 
peterrum; merged) https://github.com/dealii/dealii/pull/9224

#9223: Bug fix in PR #9155 (proposed by peterrum; merged) 
https://github.com/dealii/dealii/pull/9223

#9220: Test python bindings (proposed by masterleinad) 
https://github.com/dealii/dealii/pull/9220

#9219: deprecate members in TimerOutput (proposed by tjhei; merged) 
https://github.com/dealii/dealii/pull/9219

#9218: Instantiate FETools::get_projection_matrix for float (proposed by 
peterrum; merged) https://github.com/dealii/dealii/pull/9218

#9217: Fix date in header (proposed by peterrum; merged) 
https://github.com/dealii/dealii/pull/9217

#9216: Extend MatrixFree::get_dof_handler (proposed by Rombur) 
https://github.com/dealii/dealii/pull/9216

#9215: Make DoFHandlerPolicy independent of p4est  (proposed by peterrum; 
merged) https://github.com/dealii/dealii/pull/9215

#9214: Add CellId::is_ancestor_of (proposed by peterrum; merged) 
https://github.com/dealii/dealii/pull/9214

#9211: Instantiate DoFTools::map_dofs_to_support_points() also for <1,3>. 
(proposed by bangerth; merged) https://github.com/dealii/dealii/pull/9211

#9210: Fix some doxygen namespace links. (proposed by drwells) 
https://github.com/dealii/dealii/pull/9210

#9209: Keep the 'dealii::' in 'using namespace dealii::'. (proposed by drwells; 
merged) https://github.com/dealii/dealii/pull/9209

#9208: Fix our TBB version check. (proposed by drwells; merged) 
https://github.com/dealii/dealii/pull/9208

#9207: Implement the solution of complex linear systems using UMFPACK. 
(proposed by bangerth) https://github.com/dealii/dealii/pull/9207

#9206: Provide TaskGroup::size(). (proposed by bangerth) 
https://github.com/dealii/dealii/pull/9206

#9205: Use a range-based for loop. (proposed by bangerth; merged) 
https://github.com/dealii/dealii/pull/9205

#9204: mu_parser functions modified to use std random number generators 
(proposed by rezarastak; merged) https://github.com/dealii

Re: [deal.II] Using deal for induction heating

2020-01-07 Thread masod sadipour 
Hello dear Dr.  Wells,
I am a graduate research assistant. I have recieved a project which I
should solve the advection-diffusion equation using by deal.ii ASAP.
Could you please let me know about the possibility of using deal.ii by
windows. Should I do it just in Linux?
BR.


On Tue, Jan 7, 2020 at 6:42 PM David Wells  wrote:

> Dear Andreas,
>
> This is a specialized application domain; I am not sure if anyone here has
> done induction heating but I will do my best to try and point you in a
> useful direction.
>
> 1. I don't think we have any examples in the documentation about how to
> solve this problem. However, there are other examples of heat transfer in
> papers citing deal.II: check out the list at
> https://dealii.org/publications.html
> 2. For electromagnetism you probably want to use the Nedelec_SZ element.
> These elements tend to be very complicated so it is probably best to use
> one that is already in the library.
> 3. I don't know how to couple the electromagnetic field to the thermal
> problem.
>
> Thanks,
> David Wells
> 
>
>
> On Tue, Jan 7, 2020 at 4:34 AM Andreas Gschwentner <
> gschwentner.andr...@gmail.com> wrote:
>
>> Dear deal.II community,
>>
>> i am working on my master thesis (MU Leoben, Austria) with the general
>> topic "simulation induction heating". I want to try out a new program and
>> want to use deal.II for the simulation (I have no experience with this
>> program). Concerning this matter i have some question about deal.II:
>>
>>
>>- First of all, has someone experience with this kind of problem? Is
>>there a topic in the doc about simulation induction heating?
>>- The second question is about the elements. What kind of element
>>formalism is used for the simulation of electromagnet fields, or is it
>>possible, to implement new elements?
>>- The third question is about the coupling schemes for coupling the
>>electromagnetic with the thermal problem. Usable coupling schemes for this
>>problem?
>>
>> Many thanks for your help.
>>
>> Best regards
>> Andreas
>>
>>
>>
>> --
>> The deal.II project is located at http://www.dealii.org/
>> For mailing list/forum options, see
>> https://groups.google.com/d/forum/dealii?hl=en
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>> 
>> .
>>
> --
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> 
> .
>

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[deal.II] Windows Linux Subsysytem - using the linux libraries

2020-01-07 Thread Craig Branch 
Hi, I have successfully installed dealii using Visual Studio 2019 and also 
the Windows Linux Subsystem (WLS). The WLS worked eventually and I will 
post some commands that will help new users. I used Ubuntu 18.04 and needed 
to install  cmake, g++, libblas-dev and liblapack-dev before it when 
smoothly.

The question I have is can I compile within WSL(Ubuntu) using cmake/make 
and g++ compiler and make the dealii build and libraries then use these 
libraries and headers within Visual Studio and link against them but 
compile with the native VSC++ compiler. That is make dealii/build on Linux 
but use native visual studio for everything else.

I realise its a long shot but I have code already in native windows so this 
would be my most robust and easiest option if it could worked. Otherwise I 
will need to continue with the Native Windows dealii build and at present I 
haven't got blas or lapack working on this.

Thanks

Craig 

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Re: [deal.II] Using deal for induction heating

2020-01-07 Thread David Wells 
Dear Andreas,

This is a specialized application domain; I am not sure if anyone here has
done induction heating but I will do my best to try and point you in a
useful direction.

1. I don't think we have any examples in the documentation about how to
solve this problem. However, there are other examples of heat transfer in
papers citing deal.II: check out the list at
https://dealii.org/publications.html
2. For electromagnetism you probably want to use the Nedelec_SZ element.
These elements tend to be very complicated so it is probably best to use
one that is already in the library.
3. I don't know how to couple the electromagnetic field to the thermal
problem.

Thanks,
David Wells



On Tue, Jan 7, 2020 at 4:34 AM Andreas Gschwentner <
gschwentner.andr...@gmail.com> wrote:

> Dear deal.II community,
>
> i am working on my master thesis (MU Leoben, Austria) with the general
> topic "simulation induction heating". I want to try out a new program and
> want to use deal.II for the simulation (I have no experience with this
> program). Concerning this matter i have some question about deal.II:
>
>
>- First of all, has someone experience with this kind of problem? Is
>there a topic in the doc about simulation induction heating?
>- The second question is about the elements. What kind of element
>formalism is used for the simulation of electromagnet fields, or is it
>possible, to implement new elements?
>- The third question is about the coupling schemes for coupling the
>electromagnetic with the thermal problem. Usable coupling schemes for this
>problem?
>
> Many thanks for your help.
>
> Best regards
> Andreas
>
>
>
> --
> The deal.II project is located at http://www.dealii.org/
> For mailing list/forum options, see
> https://groups.google.com/d/forum/dealii?hl=en
> ---
> You received this message because you are subscribed to the Google Groups
> "deal.II User Group" group.
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> https://groups.google.com/d/msgid/dealii/e51b77c8-fd6c-455d-b1bd-485ab9d922f7%40googlegroups.com
> 
> .
>

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[deal.II] Using deal for induction heating

2020-01-07 Thread Andreas Gschwentner 
Dear deal.II community,

i am working on my master thesis (MU Leoben, Austria) with the general 
topic "simulation induction heating". I want to try out a new program and 
want to use deal.II for the simulation (I have no experience with this 
program). Concerning this matter i have some question about deal.II:


   - First of all, has someone experience with this kind of problem? Is 
   there a topic in the doc about simulation induction heating? 
   - The second question is about the elements. What kind of element 
   formalism is used for the simulation of electromagnet fields, or is it 
   possible, to implement new elements?
   - The third question is about the coupling schemes for coupling the 
   electromagnetic with the thermal problem. Usable coupling schemes for this 
   problem? 

Many thanks for your help.

Best regards 
Andreas 



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