Schwerg, N Auchmann, B Russenschuck, Stephan Validation of a Coupled Thermal-Electromagnetic Quench Model for Accelerator Magnets Quench simulation in superconducting magnets is a challenging task due to the interdependence of thermal, electrical, and magnetic phenomena. We present a new quench-simulation module in the CERN magnet-design program ROXIE. Thermal, electrical, and magnetic models are solved simultaneously. The integrated model helps to single out the impact of different phenomena. We can thus reach a deeper understanding of measured quench behavior. Moreover, the magnet-design process is improved due to the implementation within an integrated design and optimization environment. We compare simulations and measurements of the LHC main dipole magnet. eng 2007

http://cds.cern.ch/record/1122944/files/CERN-AT-2007-043.pdf;

Imported from Invenio. Schwerg, N Auchmann, B Russenschuck, Stephan Quench Simulation in an Integrated Design Environment for Superconducting Magnets IEEE Trans. Magn. 934-937 44 The electrical integrity of superconducting magnets that go through a resistive transition (quench) is an important consideration in magnet design. Numerical quench simulation leads to a coupled thermodynamic and electromagnetic problem, due to the mutual dependence of material parameters. While many tools treat the electromagnetic field problem and the thermodynamic one independently, more recent developments adopt a strongly coupled approach in a 3-D finite-element environment. We introduce a computationally efficient weak electromagnetic-thermodynamic coupling within an integrated design environment for superconducting magnets eng 2008

http://cds.cern.ch/record/1122942/files/CERN-AT-2007-042.pdf; http://cds.cern.ch/record/1122942/files/04526995.pdf;

Imported from Invenio.