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Page • An overlay mesher with the goal of being tolerant to raw CAD geometry with minimal or no cleanup. For user support, please send an email to sierra-help@sandia.gov. Current Release: 5.28 Full Screen download

Page • Plato (https://www.sandia.gov/plato3d/) is Sandia’s optimization-based design code, solving PDE-constrained topology and shape design problems by means of adjoint methods for gradient-based optimization. This infrastructure requires tight coupling with physics codes; in addition to Plato’s open-source physics code (Plato Analyze), Plato can be used with a growing list of internal Sandia...

Page • Release notes for CompSim products can be found below. See each product’s subpage for detailed documentation and support. For user support, please send an email to sierra-help@sandia.gov. Current Release: 5.28 Full Screen download Full Screen download Full Screen download Full Screen download Full Screen download Full Screen download

Page • The SIERRA Multimechanics Module: Aria, henceforth referred to as Aria for brevity, is an application implementing the finite element method (FEM) for solving systems of partial differential equations (PDEs). Aria is foremost the thermal module of the SIERRA tool; however, the general design of Aria lends itself to the solution...

Page • The Sierra suite is designed to enable simulation of complex multiphysics scenarios. The code suite is composed of several specialized applications which can operate either in standalone mode or coupled with each other. Arpeggio is a supported utility that enables loose coupling of the various Sierra Mechanics applications by providing...

Page • The SIERRA Low Mach Module: Fuego is the key element of the ASC fire environment simulation project. The fire environment simulation project is directed at characterizing both open large-scale pool fires and building enclosure fires. Fuego represents the turbulent, buoyantly-driven incompressible flow, heat transfer, mass transfer, combustion, soot, and absorption...

Page • The Fusion of Simulation, Experiment, and Data (FuSED) team provides a set of tools for solving inverse problems in structural dynamics, thermal physics, and sensor placement optimization via Optimal Experimental Design (OED). These methods are used for designing experiments, model calibration, and verification/validation analysis of systems. FuSED also is developing...

Page • The SIERRA Participating Media Radiation (PMR) solver: Sierra/PMR, is a Control Volume Finite Element Method (CVFEM) PMR solver using the discrete ordinates method and multiple-program multiple-data coupling to do radiative transport solves with multiple fluid codes (currently Sierra/Fuego and Sierra/Aria). For user support, please send an email to sierra-help@sandia.gov. Current...

Page • Sierra/SD provides a massively parallel implementation of structural dynamics finite element analysis. This capability is required for high fidelity, validated models used in modal, vibration, static and shock analysis of weapons systems. General capabilities for modal, statics and transient dynamics are provided. Sierra/SD is similar to commercial codes like NASTRAN...

Page • The SIERRA Solid Mechanics (SM) Module, also known as Adagio, is a Lagrangian, three-dimensional, implicit and explicit code for static and dynamic analysis of solids and structures. Implicit uses a multi-level iterative solver, which enables it to solve problems with large deformations, nonlinear material behavior, and contact. Explicit uses a...

Page • The Sierra Toolkit is an agile set of software modules which provides capabilities for: Parallel dynamic mesh management File Input/Ouput (ExodusII & other formats) Dynamic load balancing Proximity Search, Transfers Multiple program, multiple data (MPMD) coupling support The Sierra Toolkit is open-source, available at https://trilinos.github.io/ For user support, please send...

Page • The goal of the new Percept software project is to enable predictive simulation by providing tools for code and solution verification. Percept is the open source replacement of a formerly proprietary Sandia project called Encore. As part of the development process of a numerical simulation code, Percept provides tools to...