Sketch of the jet geometry.
Eigenvalue spectrum for . (a) Effect of and at . (b) Effect of at and . , , , , , , and .
Effect of We on (a) the spatial growth rate and (b) the axial wave number . —: and ----: . , , , , and .
Effect of Re on (a) the spatial growth rate and (b) the axial wave number . —: and ----: . , , , , and .
(a) The maximum spatial growth rate vs We; (b) vs Re. , , , and .
Effect of (a) , (b) , (c) , and (d) on the spatial growth rate . —: and ----: . The reference state is , , , , , and .
(a) Flow modes in experiments on the Re-We plane, where the symbols stand for the experimental boundaries between different flow modes and the curves for numerical results predicted by the spatial instability analysis; (b) the helical jetting mode, and ; (c) the coexisting jetting mode, and ; and (d) the axisymmetric jetting mode, and . , , , , and .
Results of the temporal instability analysis. (a) Effect of We on the growth rate ; —: , and ----: . (b) The value of vs We. , , , , and .
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