Results 91 to 100 of about 21,521 (207)

Airfoil Optimization and Analysis Using Global Sensitivity Analysis and Generative Design

open access: yesAerospace
This research investigates the optimization of airfoil design for fixed-wing drones, aiming to enhance aerodynamic efficiency and reduce drag. The research employs Kulfan CST and Bézier surface parameterization methods combined with global sensitivity ...
Pablo Rouco   +3 more
doaj   +1 more source

Simulation Analysis and Experimental Study on Airfoil Optimization of Low-Velocity Turbine

open access: yesJournal of Marine Science and Engineering
By combining computational fluid dynamics (CFD) and surrogate model method (SMM), the relationship between turbine performance and airfoil shape and flow characteristics at low flow rate is revealed.
Chunyun Shen   +3 more
doaj   +1 more source

Methodology for sensitivity analysis, approximate analysis, and design optimization in CFD for multidisciplinary applications [PDF]

open access: yes
Fundamental equations of aerodynamic sensitivity analysis and approximate analysis for the two dimensional thin layer Navier-Stokes equations are reviewed, and special boundary condition considerations necessary to apply these equations to isolated ...
Hou, Gene W., Taylor, Arthur C., III
core   +1 more source

Optimization of 5-Axis milling processes based on the process models with application to airfoil machining [PDF]

open access: yes, 2007
5-axis milling is widely used in machining of complex surfaces such as airfoils. Improper selection of machining parameters may cause low productivity and undesired results during machining.
Budak, Erhan, Tunc, Taner
core  

Study of Airfoil Deflections for Unsteady Aerodynamics Optimization in Pitching Airfoils

open access: yesApplied Sciences
Camber deflection concepts for a VR-12 rotorcraft airfoil were studied for the optimization of unsteady aerodynamics, including dynamic stall conditions and wing–wing interactions during pitching. The designs are based on deflections of the leading edge and trailing edge sections of the airfoil.
William Refling   +4 more
openaire   +2 more sources

Transonic rotor tip design using numerical optimization [PDF]

open access: yes
The aerodynamic design procedure for a new blade tip suitable for operation at transonic speeds is illustrated. For the first time, 3 dimensional numerical optimization was applied to rotor tip design, using the recent derivative of the ROT22 code ...
Langhi, Ronald G., Tauber, Michael E.
core   +1 more source

Kriging-Based Variable Screening Method for Aircraft Optimization Problems with Expensive Functions

open access: yesAlgorithms
The computational complexity of airfoil optimization for aircraft wing designs typically involves high-dimensional parameter spaces defined by geometric variables, where each Computational Fluid Dynamics (CFD) simulation cycle may require significant ...
Yadong Wang   +4 more
doaj   +1 more source

Application of direct inverse analogy method (DIVA) and viscous design optimization techniques [PDF]

open access: yes
A direct-inverse approach to the transonic design problem was presented in its initial state at the First International Conference on Inverse Design Concepts and Optimization in Engineering Sciences (ICIDES-1).
Forbrich, D., Greff, E., Schwarten, H.
core   +1 more source

Aerodynamic Optimization of Airfoil in Wide Range of Operating Conditions Based on Reinforcement Learning

open access: yesAerospace
Airfoil aerodynamic design represents an essential domain in aircraft development, where the pursuit of advanced and intelligent optimization strategies is important for achieving significant advancements.
Yiting Zhang   +3 more
doaj   +1 more source

Numerical optimization design of advanced transonic wing configurations [PDF]

open access: yes
A computationally efficient and versatile technique for use in the design of advanced transonic wing configurations has been developed. A reliable and fast transonic wing flow-field analysis program, TWING, has been coupled with a modified quasi-Newton ...
Cosentino, G. B., Holst, T. L.
core   +1 more source

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