新利18体育新

 首页 Home  |  新利体育客户端网址  |  人员 People  |  科学研究 Science  |  科研设备 Facilities  |  新利18最新体育娱乐  |  人才培养 Education  |  国际合作 Collaborations  |  科学普及 Outreach  |  诚聘英才 Recruitment  |  访问指南 For Visitors 
 
 首页 Home 
 新利体育客户端网址 
 人员 People 
 科学研究 Science 
 新利18最新体育娱乐 
 人才培养 Education 
 科学普及 Outreach 
 诚聘英才 Recruitment 
 访问指南 For Visitors 
 内部链接 Internal 
 
  过往活动 Past Events
当前位置: 首页 Home>>过往活动 Past Events>>正文
 

Lunch talk on Mar. 13, 2023

Implementation and Application of A Multifluid Dust Module in Athena++


Speaker: Pinghui Huang (University of Victoria)

Venue: Video Conference

Time: 12:30 PM, Monday, Mar. 13, 2023

Abstract: 

In recent years, ALMA discovered many protoplanetary disks with sub-structures in dust continuum and gas line observations. These sub-structures are believed to be tightly related to the planet formation and gas-dust interactions in disks. We have implemented a multifluid dust module in the Athena++ MHD code. The module can accommodate an arbitrary number of dust species interacting with the gas via aerodynamic drag, with a number of numerical solvers. In particular, we describe two second-order accurate, fully-implicit solvers that are stable in stiff aerodynamic drags between gas and dust. Moreover, we formulate a consistent treatment of dust concentration diffusion with dust back-reaction, which incorporates momentum diffusion and ensures Galilean invariance. This dust module is implemented to be compatible with most existing features of Athena++ and it will be particularly useful for studies of dust dynamics and planet formation in protoplanetary disks.


Report PPT:  SWIFAR_Pinghui Huang.pdf

附件【SWIFAR_Pinghui Huang.pdf已下载
关闭窗口

版权所有:新利18体育新 

新利体育平台怎么样

Baidu
map