Results 31 to 40 of about 46,505 (316)
Research on Sealed Chamber Wall Effects in an Extremely Low Wind Speed Calibration Facility
The side wall interference and disturbance reflection from the front end wall of a sealed chamber in an extremely low wind speed calibration facility operated by driving the probe in motion might have influence on the flow field inside the chamber,thus ...
ZHOU Tingbo +6 more
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Rotor airfoil design involves multi-point and multi-objective complex constraints. How to significantly improve the maximum lift coefficient and lift-to-drag ratio of rotor airfoil is a fundamental problem, which should be solved urgently in the ...
Shunlei Zhang +4 more
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This study focuses on the effect of the upward deflection of trailing edge flap (TEF) on the strength and trajectory of dynamic stall vortex (DSV) around a pitching airfoil by means of numerical simulations based on unsteady Reynolds-averaged Navier ...
Shi-Long Xing, He-Yong Xu, Wei-Guo Zhang
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The wing planform and flapping kinematics are critical for the hovering flight of flapping wing micro air vehicles (FWMAVs). The degree of influence of wing geometry and kinematic parameters on aerodynamic performance still lacks in-depth analysis.
Xinyu Lang +4 more
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Inflatable Leading Edge-Based Dynamic Stall Control considering Fluid-Structure Interaction
The inflatable leading edge (ILE) is explored as a dynamic stall control concept. A fluid-structure interaction (FSI) numerical method for the elastic membrane structure is constructed based on unsteady Reynolds-averaged Navier-Stokes (URANS) and a mass ...
Shi-Long Xing +3 more
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Multipoint high-fidelity CFD-based aerodynamic shape optimization of a 10 MW wind turbine [PDF]
The wind energy industry relies heavily on computational fluid dynamics (CFD) to analyze new turbine designs. To utilize CFD earlier in the design process, where lower-fidelity methods such as blade element momentum (BEM) are more common, requires the
M. H. Aa. Madsen +3 more
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Side force control on slender body by self-excited oscillation flag
Strong asymmetrical vortices appear on the leeward of slender body at high angles of attack, which has very unfavorable effect on the stability and control of the aircraft. A method is developed to control the side force of slender body at high angles of
Jian Zhai +5 more
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Due to the complexity of tailoring the wing flexibility and selecting favorable kinematics, the design of flapping wings is a considerably challenging problem.
Yuanbo Dong +3 more
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Making full use of wind energy can effectively alleviate the global energy shortage and environment contamination problems. Nevertheless, how to significantly improve the performance of the wind turbine airfoil and blade is a crucial issue.
Shunlei Zhang, Xudong Yang, Bifeng Song
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Review of the Co-flow Jet Flow Control Method
The co-flow jet(CFJ)is a new concept flow control method based on blowing and suction technology.Since it was proposed,it has gradually attracted extensive attention.This paper reviews the basic principles,concepts,research methods and progress of CFJ ...
XU Heyong, MA Chengyu
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