11 Result(s)
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Chapter and Conference Paper
Application of Multitask Learning for Enhancement of Spalart-Allmaras Turbulence Model
Correcting functional terms using data driven techniques is one recent approach to improve the predictive accuracy of turbulence models. We present a multitask learning framework that can be used to generalize...
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Chapter and Conference Paper
Accurate Gradient Computations for Shape Optimization via Discrete Adjoints in CFD-Related Multiphysics Problems
As more and more multiphysics effects are entering the field of CFD...
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Chapter and Conference Paper
Global Aerodynamic Design Optimization via Primal-Dual Aggregation Method
Global aerodynamic design optimization using Euler or Navier-Stokes...
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Chapter and Conference Paper
Towards Adjoint-Based Trailing-Edge Noise Minimization Using Porous Material
In this paper, we present a discrete adjoint-based optimization framework to obtain the optimal distribution of the porous material over the trailing edge of a 3-D flat plate. The near-body strength of the noi...
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Chapter and Conference Paper
Discrete Adjoint Based Optimal Active Control of Separation on a Realistic High-Lift Configuration
a for the active separation control mechanism on a realistic high-lift configuration. To control the separation, synthetic jet actuation is applied on the pressure and suction side of a 3D wing with sl...
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Chapter and Conference Paper
A Consistent and Robust Discrete Adjoint Solver for the SU \(^2\) Framework—Validation and Application
work we introduce a robust and consistent discrete adjoint solver that has been into the open-source multiphysics framework SU \(^2\) 2 by exploitation of the fixed-point structure of the flow s...
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Chapter
A Discrete Adjoint Approach for Unsteady Optimal Flow Control
In this paper, we present a discrete adjoint method for optimal flow control of unsteady incompressible viscous flows. The discrete adjoint solver is developed in an automatic fashion from the flow solver by a...
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Chapter and Conference Paper
An Efficient One-Shot Algorithm for Aerodynamic Shape Design
In this paper we consider the shape optimization of a transonic airfoil whose aerodynamic properties are calculated by a structured Euler solver. The optimization strategy is based on a one-shot technique in w...
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Chapter and Conference Paper
Adjoint Methods for Coupled CFD-CSM Optimization
Multi-disciplinary analysis is necessary to reach physically meaningful optimum designs. For aero-structural shape optimization this means coupling two disciplines – aerodynamics and structural mechanics. In t...
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Chapter and Conference Paper
Automatic Differentiation of an Entire Design Chain for Aerodynamic Shape Optimization
Detailed numerical shape optimization will play a strategic role for future aircraft design. It offers the possibility of designing or improving aircraft components with respect to a pre-specified figure of me...
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Chapter
Efficient Deterministic Approaches for Aerodynamic Shape Optimization
Because detailed aerodynamic shape optimizations still suffer from high computational costs, efficient optimization strategies are required. Regarding the deterministic optimization methods, the adjoint approa...
