Asymmetric morphology of the propagating jet. II: The effect of atmospheric gradients

Simulations of slab jets propagating in atmospheres containing pressure gradients, density gradients, and temperature gradients or temperature jumps have been performed for a range of jet velocities. The use of slab geometry allows study of asymmetric jet and lobe morphologies. Symmetry is broken by perturbing the jet at the inlet. The subsequent growth of the initial perturbation is the result of amplification by the Kelvin-Helmholtz instability.