FSV at x ¼ 0 . 2 .
02The b ¼ 10 deg **data** showed similar vortices, except the SDTV strength reduced, both BKTV and ABKV strengths increased, TKE decreased for all the vortex cores, and FSVs were absent. Additionally, SDTV and BKTV display circular cross plane streamlines with normalized cross plane profiles showing Gaussian/bell-shaped similarity.As shown in Figs. 7(b)-7(d), the S2, S4, and S6 results show all the primary vortices observed in the experiments, and some additional secondary vortices. Solutions have some similarities and some dissimilarities for the prediction of secondary vortices. Experiments could not confirm the secondary vortices. S2 exhibits helical mode instability for SDTV and BKTV. S4 and S6 did not investigate the instantaneous solution to identify such instability.
