Unstructured Mesh Technologies for Massively Parallel Simulation and Data Analysis of Magnetically Confined Plasmas

Period of Performance: 06/08/2015 - 03/07/2016


Phase 1 SBIR

Recipient Firm

Simmetrix, Inc.
Firm POC
Principal Investigator


The development of simulation tool to model magnetically confined plasmas requires consider- ing multiple overlapping scales. Continuum models address full reactor scale behaviors, while particle models are focused on fine scale behavior. The complex combinations of physics and geometrically complex reactors result in simulations involving massive calculations and data sets, which can only be executed on parallel computers. Thus, there is a critical need for effective methods that can execute coupled simulations with fully parallel representations, and computa- tions, at both the continuum and particle level with specific consideration of the ability to per- form validation with experimentally measured data. The goal of this project is to develop struc- tures and tools for multiscale plasma simulations that provide a parallel mesh and particle infra- structure, data analysis operations to support validation, geometry and meshing methods, meth- ods for scalably coupled mesh and particle operations, and a user interface for specification of the fusion plasma simulation workflows.This project will develop specific component tools needed to enable multiscale fusion plasma simulations on full reactor geometries. The technical developments will address: A parallel infrastructure that supports the scalable execution of simulations that involve a combination of continuum and particle analysis tools. Structures and methods to support the large data analysis operations involved with the execution of quantified validation processes. Specialized geometry and meshing techniques. Tools for execution of the multiscale simulations. A customizable user interface for the effective definition of the simulation workflows. The combined mesh plus particle methods to be developed in this project will provide a set com- ponents that can support the development new generations of multiscale/multiphysics simula- tions needed in the modeling of fusion and fission reactors, and for application in nuclear medi- cine. The core methods to be developed will also of great use in the development of a number of engineering simulation areas such as modeling the liquefaction of soils.