Cube polywell, rectangular vs. circular coil shape

Same amount of ampere-turns in the coils, field intensities/colors should match across pictures so can be compared. Radius of the coils 0.1524m, spacing between coils around 0.01m, max coil thickness around 0.071842m.

Polywell cross section
Round overviewRoundRectangular
Bfield Bfield Bfield
Bfield log Bfield log Bfield log
Bfield LIC Bfield LIC Bfield LIC
Bfield LIC colored Bfield LIC colored Bfield LIC colored

Polywell corner-cross section
Round overviewRoundRectangular
Bfield Bfield Bfield
Bfield log Bfield log Bfield log
Bfield LIC Bfield LIC Bfield LIC
Bfield LIC colored Bfield LIC colored Bfield LIC colored

Older simulations:

Overall cross-section of cube polywell
RectangularRound
Bfield Bfield
Bfield log Bfield log
Bfield line integral convolution Bfield line integral convolution
Bfield line integral convolution colored Bfield line integral convolution colored

Detail with integrated field line
RectangularRoundRectangular with round shell
Bfield Bfield Bfield
Bfield log Bfield log Bfield log
Bfield LIC Bfield LIC Bfield LIC
Bfield LIC colored Bfield LIC colored Bfield LIC colored

Detail at the corner with integrated field line
RectangularRoundRectangular with round shell
Bfield Bfield Bfield
Bfield log Bfield log Bfield log
Bfield LIC Bfield LIC Bfield LIC
Bfield LIC colored Bfield LIC colored Bfield LIC colored