I have been using ANSYS Maxwell from over 4 years now and the software is definitely adapting to modern research. Magneto-static and Transient analysis can be effectively done in Ansys Maxwell. It can be co-simulated in Ansys Workbench to perform multi-physics analysis. 

I have never used COMSOL but I heard that its more flexible for multi-physics analysis. 

What do you mean with "FEMM"? I'm asking because that acronym is the name of a free software called Finite Elements Method Magnetics: http://www.femm.info/wiki/HomePage

If you need only 2D simulation of magneto-static problems them FEMM is your solution. A very good software that can become even more powerful if used by means of lua scripting. Furthermore, it preforms also AC analysis, electrostatic problems, heat flow problems and current flow problems. 

Unfortunately , FEMM it's only for 2D problems. So if you need 3D, then you have to decide among other softwares. 

Regarding COMSOL vs ANSYS Maxwell:

• COMSOL is promoted to be a very good tool to solve multiphysics problems.
• ANSYS Maxwell is a software specialized/optimized for LF electromagnetic fields problems

The choice depends of what you need to do and what you plan to do in the future (and also by the license cost, but I do not know nothing about this aspect). 

here FEMM is finite element method for magneto-static analysis. I am focusing on 3D FEMM simulation only and my problem can not be conceptualized as a 2D FEMM problem.  

thank you very much for your reply...

Ok Ravindra. It clear now. I only suggest you to not use the acronym FEMM in that sense, especially in scientific papers. The software I cited you is very well known and many people could misunderstand your meaning.

Try to google the single FEMM word and see what happen ;)

Best regards and good luck for the selection to the software the best fits your needs.

Dear Ravindra,

There are several finite element software, Flux, Maxwell, COMSOL, JMAG, Opera, MagNet, and ...

To me, Flux is the best for electromagnetic analysis and ANSYS is a complete package for mechanical analysis.

Also, ANSYS Maxwell is a good software and it is used in both universities and industries. In addition, drawing the model/geometry is easy and it is an advantage. However, I prefer Flux since I have been using it for a long time (to me, the mesh setting and parameterization of complex shape machines are easier).

Regards,

Mostafa Ahmadi

thank you your reply... now I am using ANSYS AIM which is multiphysics simulation software ....inside ANSYS AIM we can easily setup magnetic simulation

For multiphysics problems I would certainly recommend Comsol, also finding it far more user friendly than Ansys