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A field line is a graphical visual aid for visualizing vector fields. It consists of a directed line which is tangent to the field vector at each point along its length. A drawing showing a representative set of neighboring field lines is a common way of depicting a vector field in scientific and mathematical literature; this is called a field line diagram. They are used to show electric fields, magnetic fields, and gravitational fields among many other types. In fluid mechanics field lines showing the velocity field of a fluid flow are called streamlines.
Methods for optimizing the symmetric configuration of quasi-isomagnetic field lines in stellarators
PendingCN122088211AAvoid physical parametersAvoid geometric parametersGeometric CADNuclear energy generationField lineMagnetic trap
This application provides a method for optimizing the quasi-isomagnetic field line symmetry configuration of a stellarator, comprising: obtaining the original magnetic field of the stellarator's quasi-isomagnetic field line symmetry configuration; extracting all original magnetic traps from the original magnetic field, performing a three-step transformation of flattening-stretching-rearrangement on each original magnetic trap to obtain a reference magnetic trap corresponding to each original magnetic trap, and combining all reference magnetic traps to form a reference magnetic field; obtaining the magnetic field parameters of the original magnetic field and the geometric parameters of the stellarator, and constructing an objective function for optimizing the stellarator's quasi-isomagnetic field line symmetry configuration based on the magnetic field parameters, geometric parameters, preset constraint parameters, and preset weighting coefficients; iteratively optimizing the objective function, and outputting the optimized stellarator configuration parameters. The optimization method of this application, by combining magnetic trap transformation, objective function construction, and precise constraint conditions, can output accurate configuration parameters and obtain a stellarator configuration with better plasma confinement performance and reasonable engineering parameters.
Owner:YAN CHAOYUAN (SHANGHAI) TECHNOLOGY CO LTD