Distribution of relative magnetic field strength H along the radius of a round “thick” solenoid at its centre (x=0) and half length (x=0.25·L), for L/d=10 and D/d=1.016.
The field is plotted as a ratio from the field at the centre, hence the relative value is unity at the centre (x=0).
The “uptick” of values towards r=1 is caused by the proximity to the wire. The solenoid was modelled with a wire 0.8 mm diameter, spaced by 1.0 mm, solenoid length L = 1000 mm and average diameter of 100 mm.
 The results were generated with the software Finite Element Method Magnetics created by Dr David Meeker. |
solenoid_round_h_along_radius_magnetica.png
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