Designing for the Mission
GHI is involved in every step of hypersonic vehicle development from initial concept all the way to flight test. GHI employs multiple levels of high fidelity tools including CAD, internal conceptual vehicle design tools, inviscid CFD, in-house developed mesh generation, viscous CFD, FEA, trajectory and stability analysis, engine performance, plus more.
Conceptual Vehicle Design
GHI has developed multiple toolchains which assist in the design and optimization of hypersonic vehicles at a conceptual design level. GHI has competency in conceptual vehicle design for both boost-glide and cruise vehicles and can design vehicles with a variety of propulsion systems including rockets, ramjet/scramjet, turbines, or combined cycle variants. GHI’s experience in carrying design through detailed design, ground and flight testing has informed their conceptual design approach leading to better modeling and design space mapping at an earlier stage in development.
Computational Fluid Dynamics
GHI has a variety of computational fluid dynamics (CFD) tools within their team that assist in design and modeling efforts form a conceptual level through detailed design. Viscous simulations are modeled using US3D, Vulcan, or Kestrel. GHI assists in development of US3D in conjunction with the University of Minnesota. GHI also uses Cart3D for inviscid solutions in early stages of development. CFD is used to determine aerodynamic databases for flight trajectory and performance modeling as well as preparing aerothermal and mechanical loads for hardware design and modeling.
CFA
GHI is involved in every step of hypersonic vehicle development from initial concept all the way to flight test. GHI employs multiple levels of high fidelity tools including CAD, internal conceptual vehicle design tools, inviscid CFD, in-house developed mesh generation, viscous CFD, FEA, trajectory and stability analysis, engine performance, plus more.
Finite Element Analysis
GHI utilizes finite element analysis (FEA) for hypersonic vehicle flight hardware design and modeling. The primary tool we use is Abaqus. We have experience with modeling thermal and mechanical analysis within hypersonic flow environments and model path dependent loads on the hardware to determine hardware response. When possible, models are tuned with experimental data to provide the most accurate response predictions possible. GHI has the tools and experience to model all necessary aspects of hypersonic hardware design from to conceptual through detailed design and test predictions.
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