Two-stream Mixing Flow with Different Tab Arrangement

Triangular shaped vortex-generating tabs arranged in an array and attached to the trailing edge of the splitter plate have been examined experimentally using a three dimensional laser-Doppler anemometer in a two-stream mixing flow situation. A velocity ratio 2:1 between the two co-flowing streams was used. Two arrangements for an array of tabs are investigated. Case 1 has all the tabs located on the high speed side while case 2 has the tabs located alternatively on either side of the splitter plate. The growth rate of the shear layer thickness at different spanwise locations and the level of the peak streamwise vorticity shed at the trailing edge will be used to determine the maximum effectiveness of the multiple tab arrangement.