Coupling of 2D and 3D quench models Michał Maciejewski Bernhard Auchmann TE-MPE-PE

Proof-of-concept project The Challenge: Couple existing 2D electromagnetic and 3D thermal models in order to enhance our modelling capabilities. The Solution: Learn and employ existing industrial standards and tools (FMI, MpCCI, etc.) to build a quench-co-simulation framework.

Building Blocks - QSF Standalone magnet *Migration of PSpice RB Circuit in progress 2D representation with field map from ROXIE Lumped-element electro-thermal model Includes ISCL, IFCL Turn sub-division CLIQ, EE, QH, diode, parallel resistor Electrical Sub-network L1L1 R1R1 i1i1 M if,y,1,1 L is,1 M is,1,1 L if,y,1 L if,x,1 i if,x,1 M if,x,1,1 R if,x,1 i is,1 i if,y,1 R if,y,1 R is,1 Coupling Current Sub-network k He,1 T He (i is,1 ) 2 R is,1 (i ify,b ) 2 R ify,1 (i ifx,b ) 2 R ifx,1 c th,1 (i1)2R1(i1)2R1 k th,1,3 k th,1,2 Thermal Sub-network q 1 =0 q 1 =1 RB Circuit - Chain of magnets* Standard: Inductor Model Coupled: 2D model

1D models of superconducting strand Building Blocks – ANSYS* Cu He Coupled 1D: Helium-cooled model (QP3 equivalent) 1D: Adiabatic model Cu *Courtesy D. Paudel 3D SMC model Thermal model

Mapping between 2D and 3D models k He,1 T He (i is,1 ) 2 R is,1 (i ify,b ) 2 R ify,1 (i ifx,b ) 2 R ifx,1 c th,1 (i1)2R1(i1)2R1 k th,1,3 Thermal Sub-network q 1 =0 q 1 =1 ANSYS* ? Electrical Sub-network L1L1 RbRb ibib M if,y,1,1 L is,1 M is,1,1 L if,y,1 L if,x,1 i if,x,1 M if,x,1,1 R if,x,1 i is,1 i if,y,1 R if,y,1 R is,1 Coupling Current Sub-network SIMULINK SIMULINK/Spice*

1.Build good relations with experienced scientists 2.Gain hands-on experience in co-simulation 3.Select an appropriate framework for our project 4.Learn about existing coupling mechanisms 5.Explore available interfaces to our models Trip to Darmstadt - goals

Thank you for your attention! Thanks to E. Ravaioli, J. Ghini, D. Paudel, A. Verweij