[LCRC Accounts] Yearly Allocation Request from HEIGHTS-3D
Hello, A yearly allocation for the LCRC cluster has been requested with the following updated information: Submitter/PI: Tatyana Sizyuk Project Name: HEIGHTS-3D Division: MCS Project title: HEIGHTS-3D modeling of plasma material interaction during edge-localized modes (ELM) and disruptions in fusion devices. Advanced 2D and 3D Laser-Produced Plasma Processes modeling for EUV Lithography and other advanced plasma applications. Associated funding: NSF, PIRE grant Other Systems: Science: HEIGHTS package is being developed as a comprehensive tool for simulation and optimization of various interaction processes during intense power deposition of various energy sources such as plasma, laser, and particle beams incident on target materials. This is multi-physics multi-phase package that combines state-of-the art models of energy deposition, vapor/plasma formation/evolution and magneto hydrodynamic (MHD) processes, thermal conduction in material and in plasma, atomic physics and resulting opacities, detailed photon radiation transport, and interaction between plasma/radiation and target material in full three dimension configurations. We use splitting methods that involve decoupling the full model into separate component for each process, employing specialized numerical methods to solve each component, and coupling the resulting solutions. Modeling of the entire evolution of laser produced plasma (LPP) in HEIGHTS package utilizes the most suited numerical and physical models for LPP plasma, e.g., weighted Monte Carlo methods for laser deposition and plasma radiation, phase change and thermal vaporization based on surface atoms kinetics modeling, Eulerian/Lagrangian description of plasma hydrodynamic evolution in multidimensional finite volume approximation, and implicit methods for plasma thermal conduction and magnetic diffusion with sparse linear equations solvers. Plasma thermodynamic properties and optical coefficients are calculated using the self-consistent Hartree-Fock-Slater (HFS) model implemented in HEIGHTS. The populations of atomic levels, ionization balance, and the ion and electron plasma concentrations are obtained based on the collisional-radiative equilibrium (CRE) approximation. Tabulated plasma properties and optical coefficients for wide range of temperatures and densities are used during t he simulation of whole cycle of plasma evolution in LPP. HEIGHTS package includes models in 3D coordinate system for vapor/plasma hydrodynamics, for magnetic diffusion, and for heat transfer in plasma and in the target; 3D Monte Carlo simulations of plasma and laser photon transport. Models were tested and dependence of results on geometry, mesh size, particles number, and energy spectra resolution was analyzed. Based on this models verification together with extensive benchmarking we found the best solutions for modeling different regimes and device configurations. Above models in the frame of HEIGHTS package will be used for the simulation of various plasma physics applications. Project description: HEIGHTS package is being updated on continuing basis with frequent add-on of new modules, improving of developed physical models and mathematics, and revising of parallel computing methods. We will study the following state-of-the art multi-phase multi-physics engineering applications: 1. EUV lithography and beyond using both YAG and CO2 lasers, pre-pulse/main pulse, mass-limited tin targets; output in 13.51% nm range as well as in 6.5-6.7 nm range; 2. Femto and nanosecond Laser Ablation mass-spectroscopy in the presence of an ambient gas: several materials, mixed material and plasma properties, the effect of plasma plume evolution on the spectrally integrated signal strength; 3. Colliding plasmas physics for various applications; 4. High-power transient plasma interactions with plasma facing and nearby components and calculation of erosion component lifetime in magnetic fusion application. We would like to request 450000 allocation hours to conduct various optimizations, benchmarking, and parametric studies of the HEIGHTS 3D packages for several projects during FY2014. Project URL: Current FY Hours Used: undetermined amount New FY Requested allocation: 450000 Q1: 70000 Q2: 150000 Q3: 130000 Q4: 100000 Justification: Thank You, The LCRC Accounts System
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