搜索结果: 46-60 共查到“知识库 航空器结构与设计”相关记录442条 . 查询时间(3.624 秒)
Aerodynamic–Structural Design Studies of Low-Sweep Transonic Wings
Aerodynamic–Structural Design Studies Low-Sweep Transonic Wings
<
2015/7/2
The current generation of wing designs for civilian air transport typically have a swept wing. However, these wings were designed without the aid of modern high-fidelity simulation and multidisc...
Multi-point Aero-Structural Optimization of Wings Including Planform Variations
Multi-point Aero-Structural Optimization Wings Planform Variations
<
2015/7/2
This paper focuses on wing optimization via control theory using a multi-point design method. Based on the design methodology previously developed for wing section and planform optimization at a speci...
Optimal Control of LCOs in Aero-Structural Systems
Optimal Control LCOs Aero-Structural Systems
<
2015/7/2
Aero-elastic systems, by their very nonlinear nature, frequently encounter Limit Cycle Oscillations (LCOs). An LCO occurs when the system being described reaches a periodic steady state where there is...
Multi-point Wing Planform Optimization via Control Theory
Multi-point Wing Planform Optimization via Control Theory
<
2015/7/2
This paper focuses on wing optimization via control theory using a multi-point design method. Based on the design methodology previously developed for wing section and planform optimization at a speci...
Exploring the Limits of Shock-free Transonic Airfoil Design
Exploring Limits Shock-free Transonic Airfoil Design
<
2015/7/2
In this study the limits of shock-free transonic airfoil design are explored via computa tional uid dynamics and shape optimization. Using an inviscid ow solver coupled with the adjoint method for sha...
Multi-Element High-Lift Configuration Design Optimization Using Viscous Continuous Adjoint Method
Multi-Element High-Lift guration Design Optimization 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...
Aero-Structural Wing Planform Optimization Using the Navier-Stokes Equations
Aero-Structural Planform Optimization Navier-Stokes Equations
<
2015/7/2
This paper describes the formulation of optimization techniques based on control theory for wing section and planform design in viscous compressible ow modeled by the Reynolds Averaged Navier-Stokes e...
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...