Software for generating magnetic field within iron

[neelakash]

Dear All,
I need to design a magnetized iron calorimeter detector (HEP ex). There will be current coils (in the vertical plane) that will generate x-y magnetic field within iron. Given the detector boundaries and exact locations of the coils (i.e. all the B.C.s), I need to obtain the components
of the magnetic field at (x, y) points in the detector. The points should be close eneough ~1 cm,
say. I am not interested in fringe fields just outside iron. It will be nice if the o/p can be found
as a table like the following:

x y z | Bx By Bz
............
<meter> | <tesla>
......|........
3.7 | 8.6 | 10 | 1.50 | 0.1 | 0.08
3.7 | 8.7 | 10 | 1.51 | 0.1 | 0.09
... | ... | ... | ... | ... | ...
... | ... | ... | ... | ... | ...
... | ... | ... | ... | ... | ...
--------------------------------------------------------------------------

Can anyone please suggest some software or program to perform this? I have institutional access to Mathematica, but I do not know if it could be used to do this. Any help will be appreciated.

 

[Bill Simpson]

If you know the theory behind magnetic fields and just need the tedious calculations done then you can often coax and nudge and beg and plead and try to get Mathematica to do the calculations. If you don't already know the subject well then it is very questionable whether you can figure out how to form the question and how to tell whether the results of the calculations are correct.

Or you could try http://www.integratedsoft.com/Products/Amperes
Or you could try http://www.infolytica.com/en%5Cproducts/magnet/
Or you could try http://www.arnoldmagnetics.com/Content1.aspx?id=4868
Or you could try http://www.scientificsoftware-solutions.com/product.php?productid=17694
but I suspect the prices on some of those may be stunning. I remember some simulation software that I used 25 years ago and the price was $15,000 per seat. Some of the above may be different.

Is there any chance you could approach some prof at a local university who might point you towards an appropriate resource to use?

 

[gsal]

Is this a 2D problem? or a 3D? At first, it sounded like 2D, but then you list z...

There are at least three free pieces of software that I know of that do electromagnetics http://www.csc.fi/english/pages/elmer/index_html,
femm (only 2D), and
Agros 2D.

I have experimented with the first one and the last one, above; the last one is very easy to use.

 

[neelakash]

Dear All,
thanks for your replies. Yes, I have learned EM theory and understand that one can uses Mathematica for generating the data. But that would be really tedious. I shall try to use the free softwares suggested by gsal. In fact, the detector will have extremely small Bz component. So,
for practical purposes it is fine if I can extract (Bx, By). Thanks to both of you again.