Extension of methods based on the stabilized finite element formulation for the solution of the Navier–Stokes equations and application to aerodynamic design

Chalot, F.; Johan, Z.; Mallet, M.; Billard, F.; Martin, L.; Barré, S.

doi:10.1016/j.cma.2023.116425

Computer Methods in Applied Mechanics and Engineering

2023

DOI: 10.1016/j.cma.2023.116425

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Extension of methods based on the stabilized finite element formulation for the solution of the Navier–Stokes equations and application to aerodynamic design

F. Chalot,

Z. Johan,

M. Mallet

et al.

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2024

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Cited by 1 publication

References 26 publications

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Gradient-Based Aero-Stealth Optimization of a Simplified Aircraft

Thoulon,

Roge,

Pironneau

2024

Fluids

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Modern fighter aircraft increasingly need to conjugate aerodynamic performance and low observability. In this paper, we showcase a methodology for a gradient-based bidisciplinary aero-stealth optimization. The shape of the aircraft is parameterized with the help of a CAD modeler, and we optimize it with the SLSQP algorithm. The drag, computed with the help of a RANS method, is used as the aerodynamic criterion. For the stealth criterion, a function is derived from the radar cross-section in a given cone of directions and weighed with a function whose goal is to cancel the electromagnetic intensity in a given direction. Stealth is achieved passively by scattering back the electromagnetic energy away from the radar antenna, and no energy is absorbed by the aircraft, which is considered as a perfect conductor. A Pareto front is identified by varying the weights of the aerodynamic and stealth criteria. The Pareto front allows for an easy identification of the CAD model corresponding to a chosen aero-stealth trade-off.

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Gradient-Based Aero-Stealth Optimization of a Simplified Aircraft

Thoulon,

Roge,

Pironneau

2024

Fluids

View full text Add to dashboard Cite

show abstract

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Extension of methods based on the stabilized finite element formulation for the solution of the Navier–Stokes equations and application to aerodynamic design

Cited by 1 publication

References 26 publications

Gradient-Based Aero-Stealth Optimization of a Simplified Aircraft

Gradient-Based Aero-Stealth Optimization of a Simplified Aircraft

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