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Generate the grdient magnetic flux (B) in the airbox

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Yun-Ching Chang

Yun-Ching Chang

March 16, 2010 3:04am UTC

Generate the grdient magnetic flux (B) in the airbox

Hi,

I am trying to analyze the particle motions in the grdient magnetic flux (B(x)). First I build a airbox and setup the boundary condition in both end of the box. Other faces in magnetic insulation. Bsically, it is simple to get the unifom magnetic flux. I just need to set the inward/outward flux density (Bn) as a constant in both end.

However, when I try to set inward/outward flux density (Bn) as different values in two ends. For example, one end is 1 another is 0. I can obtain gradient in all direction (x,y,z), but single direction (x). I attached a file to show the vector of the magnetic flux.

I am wondering if there is a method to setup the boundary in order to get the gradient magnetic flux only along one direction in the airebox. For example, B(x)=x/L, where L is the distance of two faces.

Attachments:   100315_m_field.mph  

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