Simulating the Interaction of a Non-magnetized Planet with the Stellar Wind Produced by a Sun-like Star Using the FLASH Code

Autor(es)

Evangelista, Edgard F. D. ^[1] ; Miranda, Oswaldo D. ^[1] ; Mendes, Odim ^[2] ; Domingues, Margarete O. ^[3]

Afiliação do(s) autor(es)

^[1] INPE, Div Astrofis, Ave Astronautas 1758, BR-12227010 Sao Jose Dos Campos, SP - Brazil

^[2] INPE, Div Geofis Espacial, Sao Jose Dos Campos - Brazil

^[3] INPE, Labs Associados Computacao & Matemat Aplicada, Sao Jose Dos Campos - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Physics; v. 49, n. 5, p. 678-692, OCT 2019.
• Citações Web of Science: 0

Resumo

The study of the interaction between solid objects and magnetohydrodynamic (MHD) fluids is of great importance in physics as a consequence of the significant phenomena generated, such as planets interacting with stellar wind produced by their host stars. There are several computational tools created to simulate hydrodynamic and MHD fluids, such as the FLASH code. In this code, there is a feature which permits the placement of rigid bodies in the domain to be simulated. However, it is available and tested for pure hydrodynamic cases only. Our aim here is to adapt the existing resources of FLASH to enable the placement of a rigid body in MHD scenarios and, with such a scheme, to produce the simulation of a non-magnetized planet interacting with the stellar wind produced by a sun-like star. Besides, we consider that the planet has no significant atmosphere. We focus our analysis on the patterns of the density, magnetic field, and velocity around the planet, as well as the influence of viscosity on such patterns. At last, an improved methodological approach is available to other interested users. (AU)

• Processo FAPESP: 15/25624-2 - Desenvolvimento de modelagem multiescala para instabilidades locais não-lineares em Astrofísica e Geofísica Espacial
• Beneficiário: Margarete Oliveira Domingues
• Linha de fomento: Auxílio à Pesquisa - Regular