Creating region in Ansys Maxwell

- February 24, 2020 at 8:12 am
  
  Gijoys4v
  Subscriber
  
  I am new in Ansys Maxwell. While doing a simulation I had first given 200% padding in all direction and I got a result for Magnetic flux density. But when I varied the padding to 500%, I got another value which is having wide variation. How can I fix the padding percentage. which padding percentage I have to choose?
  
  I increased the padding percentage since the magnetic field lines crossed the region created
  
  Please help , Iam stuck
- February 24, 2020 at 2:24 pm
  
  Mark Christini
  Ansys Employee
  
  The default boundary condition in Maxwell is tangential fields. So, the region must be large enough to give sufficient room for fringing.
  
  For example, if the magnetic fields are well-contained as in motor, the padding can be 20-50%. However, if the magnetic fields are not well-contained, such as two parallel current carrying conductors in air, the padding may need to be 1000% or more.
  
  If the field results change significantly when the region size is changed, the region is not large enough.
  
  Note: if you are using Maxwell 2D, you can apply a balloon boundary on the outer edge of the region which allows for fringing while using a smaller region.
- February 24, 2020 at 2:32 pm
  
  Gijoys4v
  Subscriber
  
  thanks for the reply. Iam working in 3D and Iam doing simple problem like current carrying in a wire. I want to find out the magnetic flux density
- February 24, 2020 at 2:34 pm
  
  Gijoys4v
  Subscriber
  
  So, what I want to do is I have to increase the padding in such a way that the magnetic flux density at the boundary of the region to the lowest possible. isn't it?
- August 9, 2020 at 6:23 pm
  
  Mayank
  Subscriber
  
  Please can u explain me this i m also facing this problem ? I think checking flux density is not good if we will deal with more complex things n