Statistics – Computation
Scientific paper
Nov 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...251..369i&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 251, no. 1, Nov. 1991, p. 369-381.
Statistics
Computation
36
Computational Fluid Dynamics, Finite Difference Theory, Hydrodynamic Equations, Planetary Nebulae, Stellar Envelopes, Stellar Winds, Diffusion Coefficient, Gray Scale, Red Giant Stars, Wave Equations
Scientific paper
The article begins a series devoted to the construction of numerical models of the hydrodynamic behavior of aspherical planetary nebulae. These models are based on the 'interacting-winds' picture of the formation of PN. A survey of the physics of the expected flow shows a formidable problem, because the outer wind can be hundreds of times slower and thousands of times denser than the inner wind. Such extreme circumstances require an extraordinarily cautious approach to the numerical solution of the relevant equations. The difficulties caused by these enormous discontinuities are discussed which are of a magnitude rarely encountered in other applications of numerical hydrocodes. A hydrodynamic code can be designed to deal with these problems, and first-order codes, such as particle-in-cell, are inadequate.
No associations
LandOfFree
The hydrodynamics of aspherical planetary nebulae. I - Analytic evaluation of hydrodynamic difference schemes 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 The hydrodynamics of aspherical planetary nebulae. I - Analytic evaluation of hydrodynamic difference schemes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The hydrodynamics of aspherical planetary nebulae. I - Analytic evaluation of hydrodynamic difference schemes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1716258