Heat Simulations with COMSOL

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Presentation transcript:

Heat Simulations with COMSOL Jeff Gronberg / LLNL June 26, 2007 This work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory under Contract No. W-7405-Eng-48.

Time evolution of heat distribution in beryllium Gaussian distribution, sigma=1cm Temperature Peak 1000 C Default 300 C

Beryllium parameters COMSOL has a material model library Parameters run with T during computation They match standard values at T=300 K Can be set to constants if desired

The relaxation timescale is in seconds This result would argue that the conductive heat transport timescale is much longer than the bunch structure timescale

Next step Attempt to replicate the ANL results for the post-target window Due to an e-mail crash I need to get a copy of their talk Comsol can model moving material Simulate heat transport in the liquid metal target