Results 91 to 100 of about 21,879 (220)

Aerothermodynamic Optimization of Aerospace Plane Airfoil Leading Edge

Journal of Aerospace Technology and Management, 2017
Aiming to mitigate the aerodynamic heating during hypersonic re-entry, the aerothermodynamic optimization of aerospace plane airfoil leading edge is conducted.
Chen Zhou, Zhijin Wang, Jiaoyang Zhi, Anatolii Kretov   +3 more
doaj  

Multi-objective optimal design of airfoil based on multi-island genetic algorithm

Zhongguo Jianchuan Yanjiu
ObjectivesA multi-objective optimization algorithm is proposed to address the problem of the complex operating conditions of large horizontal axis hydraulic turbine blades.
Zhiyang ZHANG, Xu LIU, Linyan WU, Shaohua CHEN, Weixing LIU, Lin CUI   +5 more
doaj   +1 more source

Design optimization of transonic airfoils [PDF]

Numerical optimization procedures were considered for the design of airfoils in transonic flow based on the transonic small disturbance (TSD) and Euler equations.
Grossman, B., Haftka, R. T., Joh, C.-Y.
core   +1 more source

An assessment of airfoil design by numerical optimization [PDF]

A practical procedure for optimum design of aerodynamic shapes is demonstrated. The proposed procedure uses an optimization program based on the method of feasible directions coupled with an analysis program that uses a relaxation solution of the ...
Hicks, R. M., Murman, E. M., Vanderplaats, G. N.   +2 more
core   +1 more source

Study of Airfoil Deflections for Unsteady Aerodynamics Optimization in Pitching Airfoils

Applied 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, Charles Fabijanic, Thomas Sprengeler, Yildirim Bora Suzen, Jordi Estevadeordal   +4 more
openaire   +2 more sources

Airfoil Optimization and Analysis Using Global Sensitivity Analysis and Generative Design

Aerospace
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, Pedro Orgeira-Crespo, Guillermo David Rey González, Fernando Aguado-Agelet   +3 more
doaj   +1 more source

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

Journal 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, Jiahao Zhang, Chenglin Ding, Shiming Wang   +3 more
doaj   +1 more source

Airfoil optimization with efficient gradient calculations [PDF]

The viscous airfoil design analysis code XFOIL was extended to allow optimization using conformal mapping coefficients as design variables. The optimization technique used was the Steepest Descent method applied to a Penalty Function.
Sorensen, Thomas
core   +1 more source

Optimization of Low Reynolds Number Airfoils for Martian Rotor Applications Using an Evolutionary Algorithm [PDF]

The Mars Helicopter (MH) will be flying on the NASA Mars 2020 rover mission scheduled to launch in July of 2020. Research is being performed at the Jet Propulsion Laboratory (JPL) and NASA Ames Research Center to extend the current capabilities and ...
Johnson, Wayne R., Koning, Witold J., Romander, Ethan A.   +2 more
core   +1 more source

Numerical optimization design of advanced transonic wing configurations [PDF]

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