High School Will a Solenoid in a Metal Pipe Create Perpendicular Magnetic Fields?

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SUMMARY

The discussion centers on the behavior of magnetic fields generated by a solenoid placed within a metal pipe. The user seeks to understand if the magnetic field can be directed to exit the solenoid along the sides rather than the ends. It is established that the presence of iron significantly alters magnetic field behavior, often leading to non-intuitive results due to saturation effects. For accurate analysis, utilizing numerical simulation tools such as Ansys or COMSOL is recommended.

PREREQUISITES
  • Understanding of solenoid design and operation
  • Knowledge of magnetic field theory and behavior in ferromagnetic materials
  • Familiarity with magnetic saturation effects
  • Experience with numerical simulation software like Ansys or COMSOL
NEXT STEPS
  • Research the principles of magnetic field lines in solenoids
  • Learn about magnetic saturation in ferromagnetic materials
  • Explore the use of Ansys for magnetic field simulations
  • Investigate COMSOL Multiphysics for modeling electromagnetic fields
USEFUL FOR

Engineers, physicists, and students interested in electromagnetism, particularly those working with solenoids and magnetic field simulations.

Salvador
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Hi, I wonder what would the path of magnetic field be in my case.I have a solenoid , it's a metal rod that has a winding in the middle of it, I need the magnetic field to come out of the rod not at the ends of it as is usually shown in pictures but at the surface side along each end of the metal rod.If I place the solenoid in a metal pipe with a slightly larger diameter would most of the field lines then exit the solenoid after the winding end at each side and enter the outer metal encasing to flow back to the other side?
I need the field between the rod and the outer pipe to be perpendicular to the surface so my question is will this arrangement do this?
I have attached a crude drawing of the supposed idea.

Thank you.
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One reason you aren't getting replies is that the behavior of magnetic field lines in the presence of iron is highly non-linear, and often the results are non-intuitive. (One example is that iron cores can saturate in some regions where the B field is intense. This alters the behavior everywhere, both elsewhere in the core as well as outside, and potentially even in your outer flux return structure.) This problem is a good candidate for analysis using one of the standard numerical simulation packages (Ansys or COMSOL, e.g.)
 

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