Mathematical modeling of dynamic wetting

• Project/Area Number: 15K17974
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Fluid engineering
• Research Institution: Osaka University
• Principal Investigator: Omori Takeshi 大阪大学, 工学研究科, 助教 (70467546)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 濡れ / 数値流体力学 / 分子動力学 / Navier境界条件 / Cahn-Hilliardモデル

Outline of Final Research Achievements

The relationship between the microscopic and apparent dynamic contact angles was elucidated by means of continuum dynamics (Navier-Stokes-Canh-Hilliard equations) simulation and molecular dynamics simulation, where the fluids were confined between two solid walls. In the present study, both the microscopic and apparent dynamic contact angles were measured in a well-controlled and unambiguous way, which is essential to the true understanding of dynamic wetting.

Research Products

• [Journal Article] Apparent and microscopic dynamic contact angles in confined flows (2017)
  • Author(s): Omori Takeshi、Kajishima Takeo
  • Journal Title: Physics of Fluids Volume: 29 Issue: 11 Pages: 112107-112107
  • DOI: 10.1063/1.4992014
  • Peer Reviewed / Open Access
• [Journal Article] Numerical study on the aerodynamics of an airfoil moving close to an air-water interface (2016)
  • Author(s): 兼子泰明 , 大森健史, 梶島岳夫
  • Journal Title: Transactions of the JSME (in Japanese) Volume: 82 Issue: 841 Pages: 16-00112-16-00112
  • DOI: 10.1299/transjsme.16-00112
  • NAID: 130005267060
  • ISSN: 2187-9761
  • Peer Reviewed / Open Access
• [Journal Article] Development of numerical method for mass transfer from a buoyant bubble under a high Schmidt number condition (2016)
  • Author(s): 足立理人, 大森健史, 梶島岳夫
  • Journal Title: Transactions of the JSME (in Japanese) Volume: 82 Issue: 839 Pages: 16-00079-16-00079
  • DOI: 10.1299/transjsme.16-00079
  • NAID: 130005166435
  • ISSN: 2187-9761
  • Peer Reviewed / Open Access
• [Journal Article] Development of numerical method for two-phase flow on polyhedral meshes (Part 1, Development of advection scheme and curvature calculation method) (2015)
  • Author(s): 鈴木浩平, 大森健史, 梶島岳夫
  • Journal Title: Transactions of the JSME (in Japanese) Volume: 81 Issue: 828 Pages: 15-00256-15-00256
  • DOI: 10.1299/transjsme.15-00256
  • NAID: 130005095713
  • ISSN: 2187-9761
  • Peer Reviewed / Open Access
• [Journal Article] Study on the Navier boundary condition for flows with a moving contact line by means of molecular dynamics simulation (2015)
  • Author(s): 日角友香, 大森健史, 山口康隆, 梶島岳夫
  • Journal Title: Transactions of the JSME (in Japanese) Volume: 81 Issue: 831 Pages: 15-00409-15-00409
  • DOI: 10.1299/transjsme.15-00409
  • NAID: 130005111466
  • ISSN: 2187-9761
  • Peer Reviewed / Open Access
• [Journal Article] Molecular dynamics analysis of the velocity slip of a water and methanol liquid mixture (2015)
  • Author(s): Satoshi Nakaoka, Yasutaka Yamaguchi, Takeshi Omori, and et al.
  • Journal Title: PHYSICAL REVIEW E Volume: 92 Issue: 2 Pages: 022402-022402
  • DOI: 10.1103/physreve.92.022402
  • NAID: 120007118553
  • Peer Reviewed
• [Presentation] 接触線を含む流れの流体力学的記述に関する考察 （分子動力学法による解析結果の適切な平均化法について） (2017)
  • Author(s): 小林要佑, 大森健史, 山口康隆, 梶島岳夫
  • Organizer: 日本流体力学会年会
• [Presentation] Apparent and Actual Dynamic Contact Angles in Confined Two-Phase Flows (2016)
  • Author(s): Takeshi Omori and Takeo Kajishima
  • Organizer: DFD16 Meeting of The American Physical Society
  • Place of Presentation: Portland
  • Year and Date: 2016-11-22
  • Int'l Joint Research
• [Presentation] 微小流路内の二相流における見かけの動的接触角と局所の動的接触角 (2016)
  • Author(s): 大森健史, 前田紘志, 小林要佑,梶島岳夫
  • Organizer: 日本混相流学会混相流シンポジウム
  • Place of Presentation: 同志社大学
  • Year and Date: 2016-08-10
• [Presentation] 上昇気泡からの高シュミット数条件下における物質輸送の数値解析 (2016)
  • Author(s): 足立理人, 大森健史, 梶島岳夫
  • Organizer: 日本機械学会 関西支部第91期定時総会講演会
  • Place of Presentation: 大阪電気通信大学（大阪府・寝屋川市）
  • Year and Date: 2016-03-13
• [Presentation] Diffuse-Interface法による微小流路内の移動接触線を伴う二相流の解析 (2016)
  • Author(s): 前田紘志, 大森健史, 梶島岳夫
  • Organizer: 日本機械学会 関西支部第91期定時総会講演会
  • Place of Presentation: 大阪電気通信大学（大阪府・寝屋川市）
  • Year and Date: 2016-03-13
• [Presentation] 気液界面近傍をヒービング運動する翼に働く流体力の数値解析 (2015)
  • Author(s): 兼子泰明, 大森健史, 梶島岳夫
  • Organizer: 第29回数値流体力学シンポジウム
  • Place of Presentation: 九州大学（福岡県・春日市）
  • Year and Date: 2015-12-15
• [Presentation] Dynamic contact angle in narrow slit pores (2015)
  • Author(s): Takeshi Omori and Takeo Kajishima
  • Organizer: 7th European-Japanese Two-Phase Flow Group Meeting
  • Place of Presentation: Zermatt（スイス）
  • Year and Date: 2015-10-11
  • Int'l Joint Research