Results 81 to 90 of about 224,566 (258)
Multi-objective Aerodynamic Optimization of High-speed Trains in Tunnels [PDF]
, 2013 A genetic algorithm (GA) is employed for the multi-objective shape optimization of the nose of a high-speed train. Aerodynamic problems observed at high speeds become still more relevant when traveling along a tunnel.
Crespo Martínez, Antonio +2 more
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A computational assessment of the aerodynamic performance of a tilted Darrieus wind turbine [PDF]
, 2015 The aerodynamic performance of a Darrieus wind turbine operating with the rotation axis tilted with respect to the free-stream wind speed is investigated in this paper. An Unsteady Reynolds Averaged Navier Stokes (URANS) Computational Fluid Dynamics (CFD)
Bedon, Gabriele +2 more
core +1 more source
Investigation on Aerodynamics of Super–Effective Car for Drag Reduction. [PDF]
, 2016 This paper focuses on shape optimization of a car body to be used in Shell Eco Marathon race. The work consists of the review of aerodynamic performance for currently used shapes, definition of the design constraints for the vehicle and recommendations ...
Cieśliński, Artur +3 more
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Aerodynamic Shape Optimization of a Missile Using a Multiobjective Genetic Algorithm
International Journal of Aerospace Engineering, 2020 The aim of this paper is to demonstrate the effects of the shape optimization on the missile performance at supersonic speeds. The N1G missile model shape variation, which decreased its aerodynamic drag and increased its aerodynamic lift at supersonic ...
Ahmet Şumnu +2 more
doaj +1 more source
Optimization and design of three-dimensional aerodynamic configurations of arbitrary shape by a vortex lattice method [PDF]
A new method based on vortex lattice theory has been developed which can be applied to the combined analysis, induced drag optimization, and aerodynamic design of three-dimensional configurations of arbitrary shape.
Feifel, W. M.
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FluidsAn optimal high-speed train nose design was formulated to reduce aerodynamic drag, mitigate tunnel micro-pressure waves, and improve crosswind safety. Using the vehicle modeling function, the EMU-320 nose shape was derived and applied as the base model ...
Suhwan Yun +4 more
doaj +1 more source
Aerodynamic shape optimization of arbitrary hypersonic vehicles [PDF]
A new method was developed to optimize, in terms of aerodynamic wave drag minimization, arbitrary (nonaxisymmetric) hypersonic vehicles in modified Newtonian flow, while maintaining the initial volume and length of the vehicle.
Dulikravich, George S. +1 more
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Optimal Aerodynamic Design of a Transonic Centrifugal Turbine Stage for Organic Rankine Cycle Applications [PDF]
, 2017 This paper presents the results of the application of a shape-optimization technique to the design of the stator and the rotor of a centrifugal turbine conceived for Organic Rankine Cycle (ORC) applications.
Dossena, Vincenzo +2 more
core +1 more source
Data-driven aerodynamic shape optimization of rotor airfoils based on deep learning
Advances in AerodynamicsAs the fundamental component of rotor blades, the airfoil dominates the aerodynamic performance of helicopter rotors. The aerodynamic shape optimization of rotor airfoils is thus an effective means of improving their aerodynamic performance.
Jiaqi Liu +3 more
doaj +1 more source
FluidsDuring this research, aerodynamic shape optimization is conducted on the Ahmed body with the drag coefficient as the objective function and the ramp shape as the design variable, while aero-structural optimization is conducted on NACA 0012 to reduce the ...
Sagidolla Batay +6 more
doaj +1 more source