  Outflows in starburst galaxies driven by thermal-mechanical energy, cosmic
rays and their mix are investigated with 1D and 2D hydrodynamic simulations. We
show that these outflows could reach a stationary state, after which their
hydrodynamic profiles asymptotically approach previous results obtained
semi-analytically for stationary outflow configurations. The X-rays from the
simulated outflows are computed, and high-resolution synthetic spectra and
broadband light curves are constructed. The simulated outflows driven by
thermal mechanical pressure and CRs have distinguishable spectral signatures,
in particular, in the sequence of the keV K$\alpha$ lines of various ions and
in the L-shell Fe emission complex. We demonstrate that broadband colour
analysis in X-rays is a possible alternative means to probe outflow driving
mechanisms for distant galaxies, where observations may not be able to provide
sufficient photons for high-resolution spectroscopic analyses.
