CFSM group

Numerical Framework for Aerospace Applications

We developed the high-fidelity simulation framework for various aerospace applications ranging from subsonic to hypersonic flow regimes. The framework is based on stabilized and variational multi-scale methods for fluid mechanics. The finite elements method (FEM) is used for discretization and special techniques (weak imposition of the Dirichlet boundary conditions and sliding interface formulation) is adopted to simulate complex flow behaviour.

Aerodynamic simulation (right) of the ducted propeller for small-scale UAVs (top)

Our group is currently working on extending the framework to the high-speed reacting flows, including the combustion modeling, and fluid-thermal-structure interaction (FTSI).

Aerodynamic simulation (top) of the make-up model of the Kratos XQ-58A Valkyrie UAS (bottom) at the subsonic flow regime.

Numerical simulation of the flow over a wedge model replicating NASA Langley’s 31” Mach 10 facility.

Mach contours and wall pressure coefficient distribution for the VLC capsuleat angle of attack of 20degree: the full energy predictions (left), results predicted by LAURA code (centre), normal force coefficient (right).

Publications

1. D. Codoni, G. Moutsanidis, M.-C. Hsu, Y. Bazilevs, C.T. Johansen, A. Korobenko Stabilized finite element formulation for high-speed compressible flows: towards hypersonic simulations Computational Mechanics, 67(3), 785-809, 2020

2. M. R. Rajanna, E. L. Johnson, F. Xu, N. Liu, J. Lua, N. Phan, Y. Bazilevs, A. Korobenko, M.-C. Hsu Fluid–structure interaction modeling with non-matching interface discretizations for compressible flow problems: application to aircraft simulations Computer Methods in Applied Mechanics and Engineering, under preparation, 2020

3. H. H. Stoldt, C. T. Johansen, A. Korobenko, P. Ziadé Verification and Validation of a High-Fidelity Open-Source Simulation Tool for Supersonic Aircraft Aerodynamic Analysis, under preparation, 2020

4. B. Dalman, A. Korobenko, P. Ziade, A. Ramirez-Serrano, C. Johansen Validation and verification of a conceptual design tool for evaluating small-scale, supersonic, unmanned aerial vehicles, under preparation, 2020