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AIRCRAFT SEGMENTATION IN SAR IMAGES BASED ON IMPROVED ACTIVE SHAPE MODEL
SAR target segmentation aircraft ISOMAP
2018/5/16
In SAR image interpretation, aircrafts are the important targets arousing much attention. However, it is far from easy to segment an aircraft from the background completely and precisely in SAR images...
Shape Optimization of a Blunt Body Vibro-wind Galloping Oscillator
Vibro-wind Galloping instability Energy harvesting
2015/8/26
The nonlinear dynamics of a transverse galloping blunt body oscillator is analyzed with respect to its geometric shape and size. The oscillator's equation of motion is studied using an approximation f...
Theoretical Background for Aerodynamic Shape Optimization
Theoretical Background Aerodynamic Shape Optimization
2015/7/3
This is the first of three lectures prepared by the authors for the von Karman Institute that deal with the subject of aerodynamic shape optimization. In this lecture we introduce some theoretic...
An advanced NURBS fitting procedure for post-processing of grid-based shape optimizations
advanced NURBS fi tting procedure post-processing grid-based shape optimizations
2015/7/3
An advanced NURBS fitting procedure for shape optimizers in 2D as well as 3D is presented. This approach utilizes a two step fitting process to approximate given sets of structured and uns...
One-shot pseudo-time method for aerodynamic shape optimization using the Navier–Stokes equations
aerodynamic shape optimization simultaneous pseudo-time stepping Navier–Stokes equations
2015/7/2
This paper presents a numerical method for aerodynamic shape optimization problems in compressible viscous flow. It is based on simultaneous pseudo-time stepping in which stationary states are o...
Aerodynamic Shape Optimization Part II:Sample Applications
Aerodynamic Shape Optimization Sample Applications
2015/7/2
This is the second of two lectures prepared by the authors for the von Karman Institute that deal with the subject of aerodynamic shape optimization.
Aerodynamic Shape Optimization Part I: Theoretical Background
Aerodynamic Shape Optimization Theoretical Background
2015/7/2
This is the first of two lectures prepared by the authors for the von Karman Institute that deal with the subject of aerodynamic shape optimization.
Aerodynamic Shape Optimization for the World's Fastest P-51
Aerodynamic Shape Optimization World's Fastest P-51
2015/7/2
In this paper, an Adjoint-based automatic design methodology has been applied to redesign the wing of the P51 \Dago Red", an aircraft competing in the Reno Air Races.
Aerodynamic Simulation and Shape Optimization for High Speed Flow
Aerodynamic Simulation Shape Optimization High Speed Flow
2015/7/2
In this paper we review the development of aerodynamic simulation and shape optimization techniques which had their inception in Princeton during the early eighties, when Seymour M. Bogdonoff wa...
Aerodynamic Shape Optimization of Transonic and Supersonic Aircraft configurations
Aerodynamic Shape Optimization Transonic Supersonic Aircraft gurations
2015/7/2
With the availability of high performance computing platforms and robust numerical methods to simulate fluid flows, it is possible to shift attention to automated design procedures which u...
Since the present author rst became involved in computational uid dynamics, around 1970, the land scape has changed dramatically. At that time, panel methods had just come into use, and the world's f...
The focus of CFD applications has shifted to aerodynamic design. This shift has been mainly motivated by the availability of high performance computing platforms and by the development of new and eci...
Aerodynamic Shape Optimization of Complete Aircraft Configurations using Unstructured Grids
Aerodynamic Shape Optimization Complete Aircraft Confi gurations Unstructured Grids
2015/7/2
Adjoint based shape optimization methods have proven to be computationally efficient for aerodynamic problems. The majority of the studies on adjoint methods have used structured grids to discret...
AERODYNAMIC SHAPE OPTIMIZATION:EXPLORING THE LIMITS OF DESIGN
AERODYNAMIC SHAPE OPTIMIZATION EXPLORING LIMITS DESIGN
2015/7/2
This paper discusses the role that computational fluid dynamics (CFD) plays in the design of aircraft. An overview of the design process is provided, covering some of the typical decisions that ...
Aerodynamic shape and planform optimization of wings using a viscous reduced adjoint gradient formula
Aerodynamic shape planform optimization viscous reduced adjoint gradient formula
2015/7/2
The focus of CFD applications has shifted to aerodynamic design. This shift has been mainly motivated by the availability of high performance computing platforms and by the development of new and eci...