Development of Impact Simulation Code with GPU

2012 Fiscal Year Final Research Report

• Project/Area Number: 22740291
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Solid earth and planetary physics
• Research Institution: The University of Tokyo
• Principal Investigator: GENDA Hidenori 東京大学, 大学院・理学系研究科, 助教 (90456260)
• Project Period (FY): 2010 – 2012
• Keywords: 惑星形成 / 進化

Research Abstract

We developed a GPU-based code for impact calculation from CPU-based code. We added some new components to our code in order to solve the equations quickly. Finally, calculation speed becomes 30 times faster than the previous CPU-based code. We applied our code to several problems. We performed very high-resolution simulation of the moon forming impact, and we found that the effect of angular momentum transport was week. We conducted cooperative research on impact simulation with experimental lab.

Research Products

• [Journal Article] The naked planet Earth: Most essential pre-requisite for the origin and evolution of life (2013)
  • Author(s): Maruyama, S., Ikoma, M., Genda, H., Hirose, K., Yokoyama, T. and Santosh, M
  • Journal Title: Geoscience Frontiers Volume: 4 Pages: 141-165
  • Peer Reviewed
• [Journal Article] Merging Criteria for Giant Impacts of Protoplanets (2012)
  • Author(s): Genda, H., Kokubo, E. and Ida, S
  • Journal Title: Astrophysical Journal Volume: 744 Pages: 8
  • Peer Reviewed
• [Journal Article] Replacement and late formation of atmospheric N2 on undifferentiated Titan by impacts (2011)
  • Author(s): Sekine, Y., Genda, H., Sugita, S., Kadono, T. and Matsui, T
  • Journal Title: Nature Geoscience Volume: 4 Pages: 359-362
  • Peer Reviewed
• [Presentation] ジャイアントインパクトは見えるのか??高温デブリ円盤の直接観測 (2013)
  • Author(s): 玄田英典、小林浩、河原創、松尾太郎、小谷隆行、村上尚史、藤井友香、小久保英一郎、他 SEIT メンバー
  • Organizer: 日本天文学会2013年春季年会
  • Place of Presentation: 埼玉大学、埼玉県
  • Year and Date: 2013-03-22
• [Presentation] 地球型惑星形成後期の衝突デブリ円盤について (2012)
  • Author(s): 玄田英典、小林浩、小久保英一郎
  • Organizer: 日本惑星科学会2012年度秋季講演会
  • Place of Presentation: 神戸大学統合研究拠点コンベンショ ンホール、兵庫県
  • Year and Date: 2012-10-26
• [Presentation] 月形成衝突のレビューとSPH法による最新の結果 (2011)
  • Author(s): 玄田英典
  • Organizer: 衝突研究会
  • Place of Presentation: 北海道大学、北海道
  • Year and Date: 2011-11-18
• [Presentation] GPUを使った、tree-Godunov-SPH法による地球型惑星の高解像度ジャイアント・インパクト・シミュレーション (2011)
  • Author(s): 細野七月、玄田英典、井田茂
  • Organizer: 地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉県
  • Year and Date: 2011-05-24
• [Presentation] Giant Impacts and Terrestrial Planet Formation (2011)
  • Author(s): Genda, H., Kokubo, E. and Ida, S.
  • Organizer: Lunar and Planetary Science Conference
  • Place of Presentation: The Woodlands Waterway Marriott Hotel and Convention Center, Texas, USA
  • Year and Date: 2011-03-08