By adding to the optimization the possibility of optimizing a surface only, one can decrease the loss BdotN in order to find a surface that corresponds to a flux surface from coil fields. This corresponds to the concept of QFM (Quadratic Flux Minimizing Surface).
By adding to the optimization the possibility of optimizing a surface only, one can decrease the loss BdotN in order to find a surface that corresponds to a flux surface from coil fields. This corresponds to the concept of QFM (Quadratic Flux Minimizing Surface).