Development of numerical simulation method for two-phase flows based on hybrid model of air phase and bubbles

• Project/Area Number: 23760787
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Naval and maritime engineering
• Research Institution: National Maritime Research Institute
• Principal Investigator: OHASHI Kunihide 独立行政法人海上技術安全研究所, 流体性能評価系, 主任研究員 (10462871)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 推進 / 運動性能 / 混相流 / 数値流体力学

Research Abstract

A new hybrid model of air phase and bubbles has been developed. Present method is applied to cases of rising bubbles and a rising bubble with an arbitrary number of small bubbles which are smaller than a grid size. Although additional verifications should be carried out, the present method is stable for a mixture condition with large and small bubbles.

Research Products

• [Presentation] 空気吹き出しに伴う二相流れの数値計算 (2013)
  • Author(s): 大橋訓英
  • Organizer: 日本混相流学会混相流シンポジウム2013
  • Place of Presentation: 長野
  • Year and Date: 2013-08-09
• [Presentation] 空気吹き出し法に伴う混相流れの数値計算 (2012)
  • Author(s): 大橋訓英
  • Organizer: 第26回数値流体力学シンポジウム
  • Place of Presentation: 東京
  • Year and Date: 2012-12-18
• [Presentation] 空気吹き出しに伴う混相流れの数値計算 (2012)
  • Author(s): 大橋 訓英
  • Organizer: 第26回数値流体力学シンポジウム講演集
  • Place of Presentation: 東京
• [Presentation] 空気吹き出し法における気泡モデルの適用性について (2011)
  • Author(s): 大橋訓英
  • Organizer: 日本混相流学会年会講演会2011
  • Place of Presentation: 京都
  • Year and Date: 2011-08-06
• [Remarks]
  • URL: http://www.nmri.go.jp/