Direct numerical simulation

• Project/Area Number: 24560929
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Fukuoka University (2013-2014); Kyushu University (2012)
• Principal Investigator: MATSUKUMA Yosuke 福岡大学, 工学部, 教授 (70282241)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 多孔質体 / 液滴 / 濡れ性 / 粘度 / 多孔体 / 浸潤

Outline of Final Research Achievements

Gas-liquid flows in/on porous structures are simulated by using of the two-phase Lattice Boltzmann method (LBM), in which the wetting boundary conditions on solid wall with complex geometry are incorporated. The complex geometry simulating the packed bed is numerically constructed by the discrete element method (DEM). It is confirmed that structure of the simulated packed bed is similar to the actual bed by comparison of wall friction factor. Next the behaviors of droplet on the porous structures are simulated with different viscosity and particle diameter. The droplets set on the porous structure at initial stage penetrated into the porous structure as time marching on and spread in the bed. It was shown that the droplet behavior depends on its viscosity. These simulation results were compared with experiment using glass beads and silicon oil and showed good agreement. The applicability of LBM to Gas-liquid flows in/on porous structures was confirmed.

Research Products

• [Presentation] 焼結ガラスビーズ多孔体への液滴浸潤速度に及ぼす粒子径の影響 (2014)
  • Author(s): 久保川悠生、松隈洋介、内山弘規、廣橋由美子
  • Organizer: 化学工学会 第46回秋季大会
  • Place of Presentation: 九州大学
  • Year and Date: 2014-09-17 – 2014-09-19
• [Presentation] 焼結ガラスビーズ多孔体への液滴浸潤速度に及ぼす粘度の影響 (2014)
  • Author(s): 松隈 洋介・ 久保川 悠生・ 安永 覚・ 切通 貴浩・ 内山 弘規・ 廣橋 由美子・峯元 雅樹
  • Organizer: 化学工学会 第79年会
  • Place of Presentation: 岐阜大学
• [Presentation] 多孔体への液滴浸潤過程の数値計算 (2012)
  • Author(s): 松隈洋介 (九大 大学院)、糸賀亮介 (九大 工)、峯元雅樹 (九大 大学院)
  • Organizer: 化学工学会秋季大会
  • Place of Presentation: 東北大学 川内北キャンパス