Instantaneous characteristics of interacting opposing plane jets in a generic enclosure measured with PIV

Abstract

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Insights into the dynamics of full-scale sector combustor isothermal flow field

“…The combination of lower eigenmodes (M2-M6) of the dilution jet zone describes the flapping dynamics of the dilution jets ( [45][46][47]). Mode M2 captures the major in-plane flapping dynamics related to the downstream part of the dilution jet.…”

“…Similar observations were recorded when reconstructing the azimuthal flowfield using M1 mode only. These flapping or stretching motions observed in two-dimensional measurement planes can be attributed to the projection of three-dimensional precession of the jet's axis( [47,48]). The precession of the dilution jets becomes even more evident when flapping is observed in both longitudinal and azimuthal planes.…”