3-D Macroscopic Electromagnetic Equilibrium for Toroidal Confinement and
Resonance Shielding in Tokamaks
ComputationalProofofToroidalPlasma
confinement
​​
IntegratingNavier-StokeswiththeLIFEFramework
​
​
​​Introduction​​​​Achievingstablemagneticconfinementinnuclearfusionplasmas(suchasinaTokamak)remainsaprofoundtheoreticalandgeometricchallenge.TraditionalMagnetohydrodynamic(MHD)modelstreatmechanicalfluiddynamicsandelectrodynamicsascoupledbutdistinctsystems.Thisnotebookexploresaunified,fundamentallydifferentapproachbasedontheLocalizedIntrinsicFieldEquilibrium(LIFE)framework.ByintegratingthemechanicalfluiddynamicsoftheNavier-StokesequationswiththeLIFEtheory,wecanexpressallphysicalinteractions—mechanicalpressure,electromagneticfieldtensors,andspatialinertia—inidenticaldimensionsofforcedensity(N/m³).Thisexactdimensionalconsistencyeliminatesthemathematicalboundariesbetweenthematerialplasmaandtheenergeticconfinementfields.TheMathematicalChallenge:ToroidalGeometry​​ToapplythisunifiedN/m³equationtoaTokamakreactor,wemustmaptheseforcedensitiesintoahighlycomplex,non-Euclideantoroidalcoordinatesystem.Withinthisgeometry,fieldconfinementisanisotropic.Thegoalofthiscomputationalnotebookistomathematicallyprovetheexistenceofzero-forceequilibriumstatesandtoidentifythepreciseboundaryconditionsrequiredforstabletoroidalconfinement.WhatThisNotebookDoes​​ThefollowingMathematicacalculationsprovidetherigorousgeometricandtensorproofsforthisunifiedconfinementmodel.Inthisnotebook,wewill:Definethecomplexmetrictensorandspatialboundariesofthetoroidalcoordinatesystem.ApplytheunifiedLIFEforce-densityequations,seamlesslyintegratingNavier-Stokesmechanicalpressurewithelectromagneticfielddynamics.Computetheanisotropicpressurevectorstoverifythezero-forcespatialequilibrium.Visualizetheexacttopologicalboundariesandvelocitynodesrequiredforstableconfinement.IinvitetheWolframcommunitytorunthecode,manipulatethetoroidalboundaryparameters,andexplorethemathematicaleleganceofintrinsicfieldequilibrium!​​​​Author:WimVegt​​​​Physicist&Researcher(Ret.),DepartmentofPhysics,EindhovenUniversityofTechnologyRelatedpreprintsregardingtheLIFEframeworkareavailableviaZenodo.
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email:wimvegt@quantumlight.science​​website:
https
:
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quantumlight.science
The toroidal coordinate system Toroidal[r, φ , θ , R], parameterized by R (Radius of the Torus), is obtained by rotating bipolar coordinates about an axis perpendicular to the axis connecting the two foci. The coordinate θ specifies the rotation. The default value for parametera is1.
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R=.
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r=.
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θ=.
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φ=.
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t=.
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<<"VectorAnalysis`"
—
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InverseFunctions->True
Out[]=
InverseFunctionsTrue
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<<Calculus`DSolve`
—
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$Failed
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Needs["DifferentialEquations`NDSolveProblems`"]
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Needs["DifferentialEquations`NDSolveUtilities`"]
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Needs["DifferentialEquations`InterpolatingFunctionAnatomy`"]
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<<Calculus`DSolveIntegrals`
—
Out[]=
$Failed
Vektor Potentiaal Toroidal
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InverseFunctions->True
Out[]=
InverseFunctionsTrue
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SetCoordinates[Toroidal[θ,r,φ,R]]
Out[]=
Toroidal[θ,r,φ,R]
In[]:=
{Coordinates[Toroidal],
CoordinateRanges[Toroidal]}
Out[]=
{{θ,r,φ},{-π<θ≤π,0≤r<∞,-π<φ≤π}}
In[]:=
CoordinatesToCartesian[Coordinates[Toroidal],Toroidal]
Out[]=

RCos[φ]Sinh[r]
-Cos[θ]+Cosh[r]
,
RSin[φ]Sinh[r]
-Cos[θ]+Cosh[r]
,
RSin[θ]
-Cos[θ]+Cosh[r]

In[]:=
R=.
In[]:=
{Coordinates[Toroidal],
CoordinateRanges[Toroidal]}
Uitkomsten