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Multiphysics Simulations Supersonic nozzle flow against a flat plate, showing density (grey) and vorticity (colors). Read More >

Rocstar Simulation Cutaway of a joint slot in the Space Shuttle solid motor showing inhibitor fluid-structure interaction. Read More >


Who we are and what we do

Illinois Rocstar LLC performs produces high-performance parallel engineering software and performs computational engineering analyses for U.S. industries and government agencies. Using the Rocstar Simulation Suite (Rocstar) and a growing set of multiphysics software tools, our technical staff employ first-principles based physics for high-fidelity numerical analysis of fluid flows, combustion, materials, structures, and their interactions in complex changing geometries.

Our mission is to provide predictive modeling and simulation for industry, science, defense, and security, and seeks to achieve our vision that high-fidelity modeling and simulation will enhance the nation’s security and economic position while minimizing cost and physical risk. We achieve this through development of advanced multiphysics software, and through application of our—and others—software to solve difficult engineering problems in applications from solid propellant rocket performance to ultra-high-performance-concrete microstructure. Our focus is to develop high quality open-source and propriety scientific software. We draw upon our base of scientists and engineers trained in engineering, physics, chemistry, and computer science. Illinois Rocstar LLC open-source and proprietary multiphysics software, combined with our technical expertise, comprises our core competency. This allows us to understand and address client needs using a broad base of technical knowledge.Titan IV fluid-structure interaction at joint slot

Founded in 2007, the principals of the company are experienced leaders and senior scientists using advanced computation and simulation techniques to understand the implications of three-dimensional fluid-structure interactions on the design and application of engineered devices. Illinois Rocstar LLC has leveraged the significant U. S. Department of Energy investment at the University of Illinois in the Rocstar Simulation Suite (Rocstar) that focused on integrated, high-fidelity simulations to predict the performance, safety and behavior of the NASA Space Shuttle solid rocket motor [Dick (2006), Brandyberry (2012)].

Our unique combination of domain science, numerical simulation, and programming knowledge enables us to quickly and effectively develop high quality scientific software. Our competitive advantages lie in our deep knowledge of high-performance simulation and computing, future breadth of penetration of our open source tools, and the unique nature of our micromaterials modeling packages. These tools include open-source (Rocstar, IMPACT, and SLMIR), and proprietary software destined for commercial licensing (insensitive munitions and micromaterials modeling tools).

Dick, W.A., R.A. Fiedler and M.T. Heath, (2006). Building Rocstar: Simulation science for solid propellant rocket motors. AIAA2006-4590.

Brandyberry, M. D., Campbell, M. T., Wasistho, B., Najjar, F. M., Jackson, T. L., Schwenk, D. R., and Dick, W. A. (2012). Rocstar Simulation Suite: An Advanced 3-D Multiphysics, Multiscale Computational Framework for Tightly Coupled, Fluid-Structure-Thermal Applications. In Proc. AIAA 4216, pages 1–10.