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Showing 1 to 10 of 10 for “"Aerodynamic Shape Optimization"”.
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Impact of turbulence models and shape parameterization on robust aerodynamic shape optimization
"Aerodynamic design optimization is typically performed at fixed flight conditions, without considering the variation and uncertainty in operating conditions. The objective of robust aerodynamic optimization is to design an aerodynamic configuration, which will keep its optimum performance under …
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Design optimization of aerodynamic drag at the rear of generic passenger cars using nurbs representation
… car has the most significant influence on its aerodynamic characteristics. This thesis studied aerodynamic shape optimization of the rear geometry of passenger cars. The Non-uniform rational B-spline (NURBS) curve was used to represent the rear body of a generic passenger car model (the Ahmed …
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An a posteriori error control framework for adaptive precision optimization using discontinuous Galerkin finite element method
Introduction: Aerodynamic design optimization has seen significant development over the past decade. Adjoint-based shape design for elliptic systems was first proposed by Pironneau and applied to transonic flow by Jameson . A review of the aerodynamic shape optimization literature and a large list …
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Analysis Driven Shape Design of Parametric Geometry Using B-Splines and Free-Form Deformation
This thesis presents a method for local aerodynamic shape optimization to morph parametric geometry. The goal is a general framework for analysis driven shape design that combines CAD-like parametric solid model geometry construction with free-form-like local deformation. One method explored uses …
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New methods for sensitivity analysis of chaotic dynamical systems
… methods are used in many applications, including aerodynamic shape optimization and adaptive grid refinement. However, traditional sensitivity analysis methods break down when applied to long-time averaged quantities in chaotic dynamical systems, such as those obtained from high-fidelity …
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Time Spectral Adjoint Based Design for Flutter and Limit Cycle Oscillation Suppression
When designing aircraft wings shapes, it is important to ensure that the flight envelope does not overlap with regions of flutter or Limit Cycle Oscillation (LCO). A quick assessment of these dynamic aeroelastic for various design candidates is key to successful design. Flutter based design …
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Integrated Multidisciplinary Design Optimization Using Discrete Sensitivity Analysis for Geometrically Complex Aeroelastic Configurations
… of an integrated multidisciplinary design optimization procedure capable of analyzing the nonlinear fluid flow about geometrically complex aeroelastic configurations have been accomplished in the present work. For the first step, a three-dimensional unstructured grid approach to aerodynamic …
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Optimization Under Uncertainty and Total Predictive Uncertainty for a Tractor-Trailer Base-Drag Reduction Device
… 2-D pathfinder study, and the culminating 3-D aerodynamic shape optimization under uncertainty (OUU) study. To gain confidence in the accuracy and precision of a computational fluid dynamics (CFD) flow solver and its Reynolds-averaged Navier-Stokes (RANS) turbulence models, it is necessary to …
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Constructive geometry parametrization tools for computer-aided design, analysis, and optimization of aeropropulsive systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms