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Efficient Aerodynamic Shape Optimization with Deep-Learning-Based Geometric Filtering
AIAA Journal, 2020Surrogate-based optimization has been used in aerodynamic shape optimization, but it has been limited due to the curse of dimensionality.
Ji-chao Li +3 more
semanticscholar +1 more source
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101), 2002
We present a new approach for accurate detection of two-dimensional shapes. We first derive an optimal smoothing filter, which minimizes both the noise power and the mean squared error between the input and the filter output. This operator is found to be a derivative of the double exponential (DODE) function.
Hankyu Moon +2 more
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We present a new approach for accurate detection of two-dimensional shapes. We first derive an optimal smoothing filter, which minimizes both the noise power and the mean squared error between the input and the filter output. This operator is found to be a derivative of the double exponential (DODE) function.
Hankyu Moon +2 more
openaire +1 more source
PDE Constrained Shape Optimization as Optimization on Shape Manifolds
2015The novel Riemannian view on shape optimization introduced in [14] is extended to a Lagrange–Newton as well as a quasi–Newton approach for PDE constrained shape optimization problems.
Volker H. Schulz +2 more
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Robust aerodynamic shape optimization—From a circle to an airfoil
Aerospace Science and Technology, 2019Aerodynamic design optimization currently lacks robustness with respect to the starting design and requires trial and error in the flow solver and optimization algorithm settings to get a converged optimal design. We address need issue by developing ways
Xiaolong He +4 more
semanticscholar +1 more source
Aerodynamic shape optimization using a novel optimizer based on machine learning techniques
Aerospace Science and Technology, 2019Aerodynamic shape optimization is usually a loop of an optimization model, an optimizer and an evaluation workflow. A new optimizer is proposed and tested for a typical aerodynamic shape optimization of missile control surfaces with computational fluid ...
Xinghui Yan +3 more
semanticscholar +1 more source
Impeller shape-optimization of stirred-tank reactor: CFD and fluid structure interaction analyses
, 2020Mixing is an important operation in the chemical industry. The present numerical study, validated by experimental data, offers a computational framework for minimizing the stirred-tank reactor power consumption and the impeller equivalent stress.
S. S. Hoseini +3 more
semanticscholar +1 more source
Shape optimization with p adaptivity
AIAA Journal, 1994A methodology is developed to integrate \(p\)-adaptive analysis with shape optimization for general velocity fields. The key contributions lie in an easily implementable shape update strategy and in an adaptive scheme to locally increase the polynomial order based on error indicators.
Salagame, Raviprakash +1 more
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Benchmark aerodynamic shape optimization with the POD-based CST airfoil parametric method
Aerospace Science and Technology, 2019This paper conducts a benchmark aerodynamic shape optimization with the developed POD-based CST airfoil parametric method. The POD analysis transforms the basis functions of the CST parametric method into reduced orthogonal POD basis functions which are ...
Xiaojing Wu +3 more
semanticscholar +1 more source
Structural shape optimization by IGABEM and particle swarm optimization algorithm
Engineering Analysis With Boundary Elements, 2018T T Nguyen +2 more
exaly +2 more sources
2005
Access to the shape by its exterior is solved using convex hull. Many algorithms have been proposed in that way. This contribution addresses the open problem of the access of the shape by its interior also called convex skull. More precisely, we present approaches in discrete case.
Jean-Marc Chassery, David Coeurjolly
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Access to the shape by its exterior is solved using convex hull. Many algorithms have been proposed in that way. This contribution addresses the open problem of the access of the shape by its interior also called convex skull. More precisely, we present approaches in discrete case.
Jean-Marc Chassery, David Coeurjolly
openaire +1 more source