Numerical investigation of the turbulent ISM
- The main topic of this work is the investigation of the interstellar medium with regard to large-scale turbulent fluctuations. For an appropriate description of the interstellar gas we utilised a MHD model with additional heating and cooling processes included. Apart from this also the influence of chemical reactions was studied. In this work we developed a numerical model for the interstellar medium using a numerical solver which suppresses artificial oscillations near the omnipresent shock structures in the highly compressible gas. After a thorough analysis of the numerical scheme with particular emphasis on the solenoidality of the magnetic field we applied the numerics to the investigation of different phases of the medium. This way, we were able to confirm the current turbulence theories and also find a match of the simulation results to actual observations.
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| Author: | Ralf KissmannGND |
|---|---|
| URN: | urn:nbn:de:hbz:294-18758 |
| Referee: | Horst FichtnerORCiDGND, Rainer GrauerORCiDGND |
| Document Type: | Doctoral Thesis |
| Language: | English |
| Date of Publication (online): | 2007/03/09 |
| Date of first Publication: | 2007/03/09 |
| Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
| Granting Institution: | Ruhr-Universität Bochum, Fakultät für Physik und Astronomie |
| Date of final exam: | 2007/02/09 |
| Creating Corporation: | Fakultät für Physik und Astronomie |
| GND-Keyword: | Astrophysik; interstellare Materie; Magnetohydrodynamik; Stoßwelle; kompressible Strömung |
| Institutes/Facilities: | Institut für Theoretische Physik IV |
| Dewey Decimal Classification: | Naturwissenschaften und Mathematik / Physik |
| faculties: | Fakultät für Physik und Astronomie |
| Licence (German): |  Keine Creative Commons Lizenz - es gelten der Veröffentlichungsvertrag und das deutsche Urheberrecht |
