PIV investigation of flowfield behind perforated Gurney-type flaps
作者： Tim Lee , L. S. Ko
DOI: 10.1007/S00348-008-0606-1
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摘要: The flow behind perforated Gurney-type flaps was investigated by using particle image velocimetry (PIV) at Re = 5.3 × 104. PIV measurements were supplemented force balance and surface pressure data. near wake disrupted narrowed, indicative of a reduced drag, with increasing flap perforation had drastically suppressed fluctuating intensity. Depending on the strength perforation-generated jet, vortex shedding process could be eliminated. porosity also led to positive camber effects decompression cavity (upstream flap), as well decreased upper lower pressures, compared solid flap. reduction in however, outweighed loss lift rendered an improved lift-to-drag ratio.
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sci-hub.se 参考文章(16)
Dan H. Neuhart, Odis C. Pendergraft, A water tunnel study of Gurney flaps ,(1988)
P. Gerontakos, T. Lee, Particle image velocimetry investigation of flow over unsteady airfoil with trailing-edge strip Experiments in Fluids. ,vol. 44, pp. 539- 556 ,(2008) , 10.1007/S00348-007-0414-Z
E Stanewsky, Adaptive wing and flow control technology Progress in Aerospace Sciences. ,vol. 37, pp. 583- 667 ,(2001) , 10.1016/S0376-0421(01)00017-3
Roy Myose, Michael Papadakis, Ismael Heron, Gurney Flap Experiments on Airfoils, Wings, and Reflection Plane Model Journal of Aircraft. ,vol. 35, pp. 206- 211 ,(1998) , 10.2514/2.2309
D. R. Troolin, E. K. Longmire, W. T. Lai, Time resolved PIV analysis of flow over a NACA 0015 airfoil with Gurney flap Experiments in Fluids. ,vol. 41, pp. 241- 254 ,(2006) , 10.1007/S00348-006-0143-8
Jonathan Zerihan, Xin Zhang, Aerodynamics of Gurney flaps on a wing in ground effect AIAA Journal. ,vol. 39, pp. 772- 780 ,(2001) , 10.2514/2.1396
Deman Tang, Earl H. Dowell, Aerodynamic Loading for an Airfoil with an Oscillating Gurney Flap Journal of Aircraft. ,vol. 44, pp. 1245- 1257 ,(2007) , 10.2514/1.26440
R. Meyer, W. Hage, D. W. Bechert, M. Schatz, F. Thiele, Drag Reduction on Gurney Flaps by Three-Dimensional Modifications Journal of Aircraft. ,vol. 43, pp. 132- 140 ,(2006) , 10.2514/1.14294
Robert H. Liebeck, Design of Subsonic Airfoils for High Lift Journal of Aircraft. ,vol. 15, pp. 547- 561 ,(1978) , 10.2514/3.58406
Raymond Chow, C. P. van Dam, Unsteady Computational Investigations of Deploying Load Control Microtabs Journal of Aircraft. ,vol. 43, pp. 1458- 1469 ,(2006) , 10.2514/1.22562