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Case Studies in Aero-Structural Wing Planform and Section Optimization
Aero-Structural Wing Planform Section Optimization
2015/7/2
This paper focuses on aero-structural optimization of wing for long range transport aircraft, using Adjoint based optimization. The paper explores and compares attainable limit such as attainable L=D ...
Challenges and Complexity of Aerodynamic Wing Design
Challenges Complexity Aerodynamic Wing Design
2015/7/2
This paper focuses on aerodynamic design methodology. It discusses challenges and complexity of aerodynamic wing design for a transonic aircraft, which arise from the complex nature of ow around the w...
During the last decade, aerodynamic shape optimization methods based on control theory have been intensively developed. The methods have proved to be very e ective for improving wing section shapes fo...
AERODYNAMIC SHAPE OPTIMIZATION OF WINGS INCLUDING PLANFORM VARIATIONS
AERODYNAMIC SHAPE OPTIMIZATION WINGS INCLUDING PLANFORM VARIATIONS
2015/7/2
This paper describes the formulation of optimization techniques based on control theory for aerodynamic shape design in inviscid compressible ow modelled by the Euler equations. The design methodology...
SONIC BOOM REDUCTION USING AN ADJOINT METHOD FOR WING-BODY CONFIGURATIONS IN SUPERSONIC FLOW
SONIC BOOM REDUCTION ADJOINT METHOD WING-BODY CONFIGURATIONS SUPERSONIC FLOW
2015/7/2
This paper presents an adjoint method for the calculation of remote sensitivities in supersonic flow. The goal is to develop a set of adjoint equations and their corresponding boundary condition...
Design Optimization of High–Lift Configurations Using a Viscous Continuous Adjoint Method
Design Optimization High–Lift Confi gurations Viscous Continuous Adjoint Method
2015/7/2
An adjoint-based Navier-Stokes design and optimization method for two-dimensional multi-element high-lift configurations is derived and presented. The compressible Reynolds-Averaged Navier-Stoke...
Unsteady Flow Investigations in an Axial Turbine Using the Massively Parallel Flow Solver TFLO
Unsteady Flow Investigations Axial Turbine Massively Parallel Flow Solver TFLO
2015/7/2
The results from two numerical simulations of the unsteady °ow in a 1-1/2 stage axial °ow turbine are presented and compared with experimental data to show both the e®ect of blade count on the so...
Acceleration of Convergence to a Periodic Steady State in Turbomachinery Flows
Acceleration Convergence Periodic Steady State Turbomachinery Flows
2015/7/2
This paper presents a technique used to accelerate the convergence of unsteady cal culations of time-periodic flows to a periodic steady state. The basis of the procedure is the use of the discr...
A Gradient Accuracy Study for the Adjoin&Based Navier-Stokes Design Method
Gradient Accuracy Study Adjoin&Based Navier-Stokes Design Method
2015/7/2
A continuous adjoint method for Aerodynamic Shape Optimization (ASO) using the compressible Reynolds-Averaged Navier-Stokes (RANS) equa-tions and the Baldwin-Lomax turbulence model was implemented and...
Time-accurate simulation of helicopter rotor flows including aeroelastic effects
Time-accurate simulation helicopter rotor flows including aeroelastic effects
2015/7/1
The following work presents recent developments in the simulation of helicopter rotor flows in the hover and forward flight regimes. The simulations are carried out by solving the full time-accurate c...
Aerodynamic Shape Optimization of Wing and Wing- B CI dy Configurations Using Control Theory
Aerodynamic Shape Optimization Wing- B CI Configurations Control Theory
2015/7/1
This paper describes the implementation of op-timization techniques based on control theory for wing and wing-body design. In previous stud-ies [18, 19,221 it wasshown that control theory could be use...
A New High Resolution Scheme for Compressible Viscous Flows with Shocks
Resolution Scheme Compressible Viscous Flows Shocks
2015/7/1
A new flux splitting and limiting technique which yields one-point stationary shock capturing is pre-sented. The technique is applied to the full Navier-Stokes and Reynolds Averaged Navier-Stokes equa...
A theoretical method was developed, and experimentally validated, to control the static shape of flexible struc tures by employing internal translational actuators. A finite element model of the struc...
A demonstration of Alfvbn waves Part 1. Generation of standing waves By ANTONY JAMESON
Alfvbn waves Generation standing waves ANTONY JAMESON
2015/7/1
In this paper the equations for Alfvh waves are examined and conditions necessary for the occurrence of resonance are determined. An experiment using liquid sodium inside a torus is described. Waves w...
Aero dynamic Shap e Optimization fo r Aircraft Design。