The viscous gas ring as an astrophysical test problem for a viscous SPH-code

✍ Scribed by R Speith; H Riffert

• Book ID: 104339024
• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 511 KB
• Volume: 109
• Category: Article
• ISSN: 0377-0427
• DOI: 10.1016/s0377-0427(99)00160-0

✦ Synopsis

We present the general analytic solution of a viscous gas ring around a central mass. This solution is used to test a further development of the smoothed particle hydrodynamics (SPH) algorithm, which is capable of simulating problems with physical viscosity (here: with kinematic viscosity). We discuss some SPH simulation results and conclude some fundamental properties of the algorithm.