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Applied Tool Development


Applied Tool Development
At Corvid Technologies, we use a variety of software tools to accomplish our goals. When appropriate and cost effective, we take advantage of the most promising commercially available tools. However, many times our customers’ needs push beyond what outside commercial software can be used to address. For these types of challenges, we develop indigenous codes that push the limits of technological advances in computational algorithms and mathematical models to represent the physics of interest. Our two main development efforts are RavenCFD and Velodyne, but we are continuously creating powerful, efficient software applications that can be applied to provide solutions to problems large and small.

Velodyne
Corvid Technologies has developed Velodyne as an advanced structural mechanics code capable of solving complex engineering problems encompassing relatively low strain rate elastic deformation of intricate structures to high strain rate plastic deformations due to blast loading and hypervelocity impact. Velodyne is a Lagrangian-based Finite Element Analysis tool with multi-body contact that we are continuing to develop in-house and optimize for massive parallel computational efficiency.

To meet the wide range of analysis needs our motorsport and defense customers ask us to solve, we have included advanced constitutive models describing the physical response of engineering materials to the variety of loading conditions encountered. Velodyne provides us with the flexibility needed to approach new problems with the most current theoretical treatments of the physics involved at a high level of fidelity. With the ability to run in parallel on our ample computational resources, this tool allows for component- to system-level analyses to be conducted quickly to solve difficult problems within a relavent timeframe. Areas of development include:

  • Continued parallel optimization
  • Expansion of element-to-particle conversion to include “smart particle” capability
  • Inclusion of advanced equations of state for multi-phase material representation
  • Thermal solver to couple thermal/mechanical material response
RavenCFD
RavenCFD is a massively parallel, arbitrary polyhedral, Navier-Stokes solver developed by Corvid Technologies for the prediction of complex three-dimensional flowfields. Its fully implicit time integration scheme, combined with Newton subiterations, yields accurate, robust solutions for both steady and unsteady flows. Raven’s scalability has been demonstrated up to thousands of processors on distributed-memory systems, meaning that problem size is limited by the computer and not the code. The code has been utilized for a variety of high- and low-speed problems.

Raven is distributed with a suite of tools to improve the entire analysis process. These tools include grid-generation aids to reduce element count, improve element distribution, and increase overall element quality, as well as post-processing tools to permit rapid parametric analysis and comparison of code results.

New features currently under development include:

  • An advanced Virtual Geometry Insertion (VGI) algorithm to permit rapid changes to the problem geometry.
  • A 6-degree-of-freedom module to move VGI bodies through the domain based on computed forces and moments.


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