都市気象LESモデルを用いた大気境界層を突破する熱的上昇流の発見と渦管解析

• 山口, 弘誠

  京都大学防災研究所

• 小西, 大

  京都大学工学部地球工学科

• 土橋, 知紘

  京都大学院工学研究科

• 中北, 英一

  京都大学防災研究所

書誌事項

タイトル別名

• Study of Thermals and Vortex Tubes Breaking through Atmospheric Boundary Layer by Urban Meteorological Model Based on Large Eddy Simulation

抄録

It is aimed to analyze under what conditions thermals generated by the heat and shape effect of the city break through the atmospheric boundary layer. I used the urban meteorological Large Eddy Simulation model and the thermals over Kobe City are our targets. As a result, three factors were confirmed on the thermals which break through the atmosphere boundary layer. One factor is strong thermal buoyancy, and second factor is elimination of the stabilizing layer by another thermal and last factor is vapor amount. In addition, we could confirm the assembly of vortex. The assembly occur by vertical shear of horizontal wind. It is possible that the assembly strengthen each vortex. At last, I analyzed which factor is important for generating cumulus cloud.

収録刊行物

• 京都大学防災研究所年報. B

  京都大学防災研究所年報. B 62 (B), 493-532, 2019-09

  京都大学防災研究所

キーワード

• 都市気象LES
• 渦管
• 大気境界層

詳細情報

• CRID: 1050001338940133888
• NII論文ID: 120006770327
• NII書誌ID: AN00027784
• ISSN: 0386412X
• HANDLE: 2433/244978
• 本文言語コード: ja
• 資料種別: departmental bulletin paper
• データソース種別:
  • IRDB
  • CiNii Articles
  • KAKEN