US3D provides high fidelity CFD for hypersonics that is efficient, fast and massively parallel.

In addition to licensing and distributing US3D, VirtusAero provides users with a help desk and ticket tracking system so they can contact US3D developers and expert users for help with software configuration, compilation and installation support.

The experts at VirtusAero can also provide diagnosis and resolution of reported problems with US3D, as well as answer questions related to software usage and integration with grid generation or solution post-processing software. Engineers who utilize the US3D help desk through VirtusAero can expect to more quickly become proficient US3D users. The collaboration of VirtusAero experts with US3D researchers at the University of Minnesota will help ensure that any bugs or problems are more quickly resolved.

US3D Overview

Unstructured-grid finite-volume CFD

State-of-the-art research and analysis tool

Similar physics and methods to NASA Ames DPLR code

More flexibility to handle unstructured grids
Extensive programmability features with user subroutines and plugins

Grid Compatibility

Can read grids from:

Cubit
GridPro
LINK3D
Pointwise
Trelis
Others

Allows mixtures of hex, prism, pyramid, and tetrahedral elements

Desktop to Massively-Parallel Simulations

Highly-scalable and efficient using MPI
Scales with nearly-ideal parallel efficiency

Supersonic and Hypersonic Flow Focused

Thermal non-equilibrium, molecular vibration, electronic excitation and energy relaxation
Fully-coupled, non-equilibrium chemistry
Automated bow shock grid tailoring
Optimized solvers for perfect-gas laminar and perfect-gas turbulent

Laminar or Turbulent Flow

Viscous or inviscid flow, laminar or turbulent with Spalart-Allmaras, and SST
RANS, LES, DES, DDES, IDDES
Turbulence trip models

High-Order Low Dissipation Fluxes

Low-dissipation MSW flux-vectors
MUSCL-limited 2nd order upwind
2nd, 4th, and 6th order low-dissipation kinetic-energy-consistent fluxes

Time Integration Methods

Point implicit and DPLR line implicit
1st-3rd order time integration
Coupled or decoupled implicit chemistry

Accelerated Convergence/Sensitivity Analysis

Geometry or flow parameter sensitivity
Accelerated solutions for trajectory or aerodynamic database analysis
Interpolation to higher-resolution grids

Run-Time Solution Management

Dynamic/Unsteady Grid Motion

Extensive Post-Processing Toolkit

User Subroutines and Plugins

Use built-in or user-specified BCs
Catalytic wall
Ablating wall
Automatic Mesh Refinement
FPV/EVM combustion model
Conjugate heat transfer/solid head conduction
Moving bodies/dynamic grid motion
Radiation analysis/NEQAIR integration
Input/output analysis

US3D User Training Workshops

Intensive, hands-on training for beginning or advanced US3D users
Training help at VirtusAero offices, over the web, or at Customer sites

VirtusAero Support Services

US3D usage and analysis support
Software integration assistance
CFD analysis and engineering support
Development of / Assistance with user subroutine and plug-ins.

Custom Programming

We offer installation and usage support through the US3D Helpdesk, as well as user training and tutorials. VirtusAero also offers custom programming for specialized analysis and post-processing related to US3D.

Main Benefits

US3D code is scalable, flexible, more accurate, and faster than any other exisiting CFD code. Utilizing an unstructured grid US3D code allows problems to be solved efficeently and in a cost effective manner.

Facilitated Training

VirtusAero provides hands-on, in-person training on both US3D and STABL2D/STABL3D. Training can be conducted on site at your facility, or hosted by VirtusAero in Minneapolis, Minnesota.

Excellent Support

VirtusAero provides US3D users with a help desk and ticket tracking system through which users can contact US3D developers and expert users for help with software configuration, compilation, and installation support.

Thermal Analysis

Turbulence Modeling

Aerodynamics Simulation

Hypersonic

Frequently Asked Questions

What types of licenses are available?

There are currently 3 license types available:

Node-Locked (NL): no seat count; limited to running on a particular HostID; no limit on the number of instances of the code running at once
Named-User (NU): no seat count; no limit on number of instances of the code running at once; most powerful type of license for a single US3D user
Floating License (FL): have a seat count associated with them; license must be checked out from license server, with a fixed number of license seats available (depending on number purchased); number of simultaneous instances of code running at one time is limited to the number of floating license seats available

VirtusAero

Computational Fluid Dynamics software

US3D

VirtusAero offers licensing, distribution, and user support for the University of Minnesota US3D code.

US3D Overview

Grid Compatibility

Desktop to Massively-Parallel Simulations

Supersonic and Hypersonic Flow Focused

Laminar or Turbulent Flow

High-Order Low Dissipation Fluxes

Time Integration Methods

Accelerated Convergence/Sensitivity Analysis

Run-Time Solution Management

Dynamic/Unsteady Grid Motion

Extensive Post-Processing Toolkit

User Subroutines and Plugins

US3D User Training Workshops

VirtusAero Support Services

Custom Programming

Main Benefits

Facilitated Training

Excellent Support

Thermal Analysis

Turbulence Modeling

Aerodynamics Simulation

Hypersonic

Frequently Asked Questions

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Products

Hypersonic Boundary Layer Analysis

Computational Fluid Dynamics (CFD)

Facilitated Training

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