Experimental and numerical investigation of two-dimensional parallel jets

The flowfield of dual, parallel planar turbulent jets is investigated exper imentally using an x-type hot-wire probe and numerically by solving the Rey nolds-averaged Naiver-Stokes equations. The performance of both differentia l Reynolds stress (RSM) and standard k-epsilon turbulence models is evaluat ed. Results show that the numerical models predict the merge and combined p oint characteristics to good accuracy. However, both turbulence models show a narrower width of the jet envelope than measured by experiment. The pred icted profiles of the mean velocity along the symmetry plane agree well wit h the experimental results.