J. X. Pan, W. B. Wang, Y. Wang, X. Zhang, P. Shen, F. Tong
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Experimental Study on the Enhancement of Blowing Lift of a Near-Wave Water Wing
The aerodynamic characteristics of amphibious aircraft in real wind and wave conditions are studied. An experimental investigation of jet lift control on airfoil in near-wave water is conducted. The novel wind-water tunnel testing methods are proposed. The study focuses on the aerodynamic performance of the basic airfoil, the lift enhancement performance of the jet, and ground/water surface effects. The results show that flap jet flow significantly increases the lift coefficient of the airfoil. When Cμ = 0.024, the lift increase is equal to approximately 48.3%. As compared to steady jet flow, unsteady pulsed jet flow has the greater lift enhancement potential, with a lift increase of about 32.5% at Cμ = 0.015. The dimensionless wave height A1 in the range from 0.653 to 0.928 results in a smoother stall characteristic compared to A1 = 0.307. The higher wave motion adversely affects the lift enhancement of the airfoil under jet control.
期刊介绍：
Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.
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