000153700 001__ 153700
000153700 005__ 20190316234924.0
000153700 02470 $$2ISI$$a000303848800017
000153700 037__ $$aCONF
000153700 041__ $$aeng
000153700 245__ $$aExperimental investigation of the vortex shedding dynamic in the wake of oblique and blunt trailing edge hydrofoils using PIV-POD method
000153700 269__ $$a2010
000153700 260__ $$bAmerican Soc Mechanical Engineers, Three Park Avenue, New York, Ny 10016-5990 Usa$$c2010
000153700 336__ $$aConference Papers
000153700 500__ $$ahydrodyna
000153700 520__ $$aThis paper presents an experimental investigation of the vortex shedding in the wake of blunt and oblique trailing edge hydrofoils at high Reynolds number, Re=5 10 5 - 2.9 10 6. The velocity field in the wake is surveyed with the help of Particle-Image-Velocimetry, PIV, using Proper-Orthogonal-Decomposition, POD. Besides, flow induced vibration measurements and high-speed visualization are performed. The high-speed visualization clearly shows that the oblique trailing edge leads to a spatial phase shift of the upper and lower vortices at their generation stage, resulting their partial cancellation. For the oblique trailing edge geometry and in comparison with the blunt one, the vortex-induced vibrations are significantly reduced. Moreover, PIV data reveals a lower vorticity for the oblique trailing edge. The phase shift between upper and lower vortices, introduced by the oblique truncation of the trailing edge, is found to vanish in the far wake, where alternate shedding is recovered as observed with the blunt trailing edge. The phase shift generated by the oblique trailing edge and the resulting partial cancellation of the vortices is believed to be the main reason of the vibration reduction
000153700 6531_ $$aVortex Shedding, Wake, Trailing Edge, Flow-Induced Vibration
000153700 700__ $$0243099$$aZobeiri, Amirreza$$g166861
000153700 700__ $$aAusoni, Philippe
000153700 700__ $$0241012$$aAvellan, François$$g104417
000153700 700__ $$0240473$$aFarhat, Mohamed$$g123870
000153700 7112_ $$a7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions and Flow-Induced Vibration & Noise$$cMontreal, Canada$$dAugust 1-5, 2010
000153700 773__ $$tProceeding of the 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions and Flow-Induced Vibration & Noise
000153700 8564_ $$s2123436$$uhttps://infoscience.epfl.ch/record/153700/files/ASME2010-30758.pdf$$yn/a$$zn/a
000153700 909C0 $$0252135$$pLMH$$xU10309
000153700 909CO $$ooai:infoscience.tind.io:153700$$pconf$$pSTI$$qGLOBAL_SET
000153700 917Z8 $$x166861
000153700 917Z8 $$x166861
000153700 937__ $$aEPFL-CONF-153700
000153700 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000153700 980__ $$aCONF