Initial coupling of coronal and heliospheric numerical magnetohydrodynamic codes
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- 作者：Dusan Odstrcil ; Victor J. Pizzo ; Jon A. Linker ; Pete Riley ; Roberto Lionello ; Zoran Mikic
- 关键词：Solar corona ; Heliosphere ; Solar wind ; Coronal mass ejection ; Interplanetary shock ; Magnetohydrodynamic model ; Numerical simulation
- 刊名：Journal of Atmospheric and Solar-Terrestrial Physics
- 出版年：2004
- 出版时间：October-November 2004
- 年：2004
- 卷：66
- 期：15-16
- 页码：1311-1320
- 全文大小：1789 K
文摘
Coupling of coronal and heliospheric magnetohydrodynamic (MHD) codes represents an efficient modular approach to numerical simulations of physical phenomena occurring on different spatial and temporal scales. Using specialized models makes it possible to: (1) treat efficiently the very different physics relevant in coronal and interplanetary regimes; (2) deal with different time-step constraints for coronal and heliospheric simulations; and (3) optimize and update individual system components with the latest understanding. We present results on the coupling of coronal and heliospheric numerical MHD codes developed within the Center for Integrated Space weather Modeling. We discuss 2-D parametric studies conducted to verify the computational coupling procedure and to assess the accuracy of merging physically and numerically different models.