Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ap%26ss.334...35m&link_type=abstract
Astrophysics and Space Science, Volume 334, Issue 1, pp.35-44
Astronomy and Astrophysics
Astrophysics
General, Hydrodynamics, Thermal Instabilities, Negative Viscosity, Shock Waves, Ism, Clouds
Scientific paper
The isentropic thermal instability of media with a generalized heat-loss function and negative bulk viscosity condition are discussed. We obtain the nonlinear equation taking into account the nonlinear saturation of the isentropic instability. This equation describes the nonstationary evolution of acoustical waves in media with the isentropic instability. Its stationary solutions are investigated analytically. The most interesting solution is the self-sustained pulse. Using the numerical simulation of the nonlinear acoustical equation and the full system of one-dimensional non-stationary hydrodynamical equations, we showed the disintegration of the initial weak perturbation of compression into sequence of these self-sustained pulses in low-density PDRs.
Galimov R. N.
Makaryan V. G.
Molevich N. E.
Zavershinsky D. I.
No associations
LandOfFree
Traveling self-sustained structures in interstellar clouds with the isentropic instability does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Traveling self-sustained structures in interstellar clouds with the isentropic instability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Traveling self-sustained structures in interstellar clouds with the isentropic instability will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1850668