Aerodynamic Optimization of Transonic Wing Design Based on Evolutionary Algorithm (2008)
Akira Oyama, Shigeru Obayashi, Kazuhiro Nakahashi, Takashi Nakamura
ABSTRACT: Evolutionary Algorithm (EA) is applied to a practical three-dimensional shape optimization for aerodynamic design of an aircraft wing. Aerodynamic performances of the design candidates are...
Abstract Parallel Unstructured Mesh Generation by an Advancing Front Method (2008)
Yasushi Ito, Alan M. Shih, Anil K. Erukala, Bharat K. Soni, Andrey Chernikov, Nikos P. Chrisochoides, ...
Mesh generation is a critical step in high fidelity computational simulations. High-quality and high-density meshes are required to accurately capture the complex physical phenomena. A robust...
Parallel Unstructured Mesh Generation by an Advancing Front Method (2008)
Yasushi Ito, Alan M. Shih, Anil K. Erukala, Bharat K. Soni, Andrey N. Chernikov, Nikos P. Chrisochoides, ...
Mesh generation is a critical step in high fidelity computational simulations. High quality and high density meshes are required to accurately capture the complex physical phenomena. A parallel...
Akira Oyama, Shigeru Obayashi, Kazuhiro Nakahashi, Naoki Hirose
Evolutionary Algorithms (EAs) based on structured coding have been proposed for aerodynamic optimization of wing design. Fractional factorial design is used to investigate interactions of the design...
Daisuke Sasaki, Masashi Morikawa, Shigeru Obayashi, Kazuhiro Nakahashi
Abstract. This paper describes an application of Adaptive Range Multiobjective Genetic Algorithms (ARMOGAs) to aerodynamic wing optimization. The objectives are to minimize transonic and supersonic...
Unstructured Mesh Generation for Viscous Flow Computations (2002)
Yasushi Ito, Kazuhiro Nakahashi
This paper presents a robust and automated approach to generate unstructured hybrid grids comprised of tetrahedra, prisms, and pyramids for high Reynolds number flow computations. The hybrid mesh...
Real-coded adaptive range genetic algorithm applied to transonic wing optimization (2001)
Akira Oyama, Shigeru Obayashi, Kazuhiro Nakahashi
Real-coded Adaptive Range Genetic Algorithms (ARGAs) have been developed. The real-coded ARGAs possess both advantages of the binary-coded ARGAs and the use of the floating point representation to...
Design optimization of supersonic wings using evolutionary algorithms (1998)
Shigeru Obayashi, Kazuhiro Nakahashi, Akira Oyama, Nobuhisa Yoshino
Abstract. Feasibility of evolutionary computations for supersonic wing design optimization was demonstrated by the single-objective aerodynamic optimization and multiobjective, multidisciplinary...