High Performance Computation-based Phase Field Simulation of Metal - PowerPoint PPT Presentation

High Performance Computation-based Phase Field Simulation of Metal Layer Retraction Zirui Mao (Postdoc), Michael J. Demkowicz (supervisor) Department of Materials Science and Engineering, TAMU HPRC, TAMU Friday, November 6, 2020 Zirui Mao & Michael J. Demkowicz 2020/11/6 1 HPC-based phase field simulation of metal layer retraction

Content •2D simulation of metal layer retraction • Annealing + retracting • Retracting + breaking • Layers jointing •3D simulation of metal layer retraction • Influence of surface perturbation on layer retraction • Influence of surface perturbation on cylinder evolution Zirui Mao & Michael J. Demkowicz 2020/11/6 2 HPC-based phase field simulation of metal layer retraction

2D simulation of layer retraction • Proposed a simple inferring approach of constant mobility in the Cahn-Hilliard equation by carrying out a series of 2D phase-field modeling of metal layer retraction ( annealing + retracting ). Numerical model: Model size: ranges from 40,000 to 4M nodes. Configuration of HPC machine: Cluster : Ada (TAMU HPRC) CPUs : 20-core (GPU-enabled) Memory : 54G Memory Software : Matlab (not parallel) Run time : ranges from 1~40 days. Zirui Mao & Michael J. Demkowicz 2020/11/6 3 HPC-based phase field simulation of metal layer retraction

2D simulation of layer retraction • Proposed a simple inferring approach of composition-dependent mobility in the Cahn-Hilliard equation by carrying out a series of 2D phase-field modeling of metal layer retraction ( retracting+breaking ) Numerical model: animation Model size: 100,000~1M nodes. Configuration of HPC machine: Cluster : Terra (TAMU HPRC) CPUs : 280-core Memory : 54G Memory Software : Moose & Paraview Run time : 1~14 days. Zirui Mao & Michael J. Demkowicz 2020/11/6 4 HPC-based phase field simulation of metal layer retraction

2D simulation of layer retraction • Simulated the layers jointing process during processing of material via 2D phase-field modeling. animation Configuration of HPC machine: Cluster : Terra (TAMU HPRC) CPUs : 140-core Memory : 54G Memory Software : Moose & Paraview Run time : 10 hours. Numerical model: Mesh resolution: 80,000 nodes. Zirui Mao & Michael J. Demkowicz 2020/11/6 5 HPC-based phase field simulation of metal layer retraction

3D simulation of layer retraction • Investigated the influence of surface perturbation on the retracting process of metal layer by performing 3D phase-field modeling (retracting&breaking) ~4M Configuration of HPC nodes. machine: Cluster : Terra (TAMU HPRC) CPUs : 280-core Memory : 108 G Memory Software : Moose & Paraview Run time : ~6 days. Zirui Mao & Michael J. Demkowicz 2020/11/6 6 HPC-based phase field simulation of metal layer retraction

3D simulation of cylinder’s break-up • Studied the retraction of cylinders & the ‘Plateau-Rayleigh instability’ of disturbed infinitely long cylinders via 3D phase-field modeling. ~1M nodes. Configuration of HPC machine: Cluster : Terra (TAMU HPRC) CPUs : 280-core Memory : 54 G Memory Software : Moose & Paraview Run time : 3~14 days. Zirui Mao & Michael J. Demkowicz 2020/11/6 7 HPC-based phase field simulation of metal layer retraction

Acknowledgements • We thanks for the financial support from the Department of Energy under the grant award number of DE-SC0018892. • We also thanks for the great technical support from HRPC, TAMU for the heavy-load high performance computation. Zirui Mao & Michael J. Demkowicz 2020/11/6 8 HPC-based phase field simulation of metal layer retraction

Thanks for your attention! Please feel free to contact me per any questions: maozr@tamu.edu Zirui Mao & Michael J. Demkowicz 2020/11/6 9 HPC-based phase field simulation of metal layer retraction