Structural and stability characteristics of jets in crossflow – CORRIGENDUM

After extensive examination and testing, we have determined that erroneous jet flow rates were used in some of the experiments in the above-noted papers (Getsinger et al. 2014; Gevorkyan et al. 2016). This error only pertains to those experiments involving acetone planar laser-induced fluorescence (PLIF) imaging, in which the jet fluid is a mixture of helium, nitrogen and acetone vapour. For these acetone PLIF experiments, the flow rates of helium and nitrogen were prescribed in a manner that erroneously neglected the contribution of acetone vapour to the combined mixture flow rate. Therefore, our actual jet flow rates were higher than those stated in the two papers for such experiments. The identification of instabilities cited (convective instability versus absolute instability in the upstream shear layer, for example) is unchanged in the papers, as are the overall findings on mixing metrics and trends as well as jet structure. The overarching conclusions for the papers are also unchanged. However, many of the parameter values cited in the figures require correction. To correct the research record, we note the following for transverse jet experiments in the papers mentioned above involving acetone PLIF experiments only: