Numerical investigation for particulate flows in sheet flow regime using 4way coupling model

• Project/Area Number: 25420520
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Hydraulic engineering
• Research Institution: Kyoto University
• Principal Investigator: Harada Eiji 京都大学, 工学研究科, 准教授 (00362450)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2016: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2015: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2013: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
• Keywords: シートフロー / 粒子流 / 個別要素法

Outline of Final Research Achievements

Understanding of an inner structure of sheet flow layer is indispensable to investigate a coastal process. Inner structure of sheet flow layer is numerically examined using the 4-way coupling model. The reproducibility of the 4-way coupling model based on the LES-DEM is validated, from comparison with the experimental particle velocity data derived from PIV method. The component of the shear stress in the sheet flow layer is numerically shown.

Research Products

• [Journal Article] INVESTIGATION OF GRANULAR-FLUID OSCILLATORY SHEAR FLOWS BY LES-DEM AND PIV (2016)
  • Author(s): 原田英治・鶴田修己・後藤仁志
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) Volume: 72 Issue: 2 Pages: I_589-I_594
  • DOI: 10.2208/kaigan.72.I_589
  • NAID: 130005282383
  • ISSN: 1883-8944, 1884-2399
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] LES-BASED COMPUTATIONAL STUDY ON FRICTION FACTOR UNDER COARSE-GRAINED SHEET-FLOW (2015)
  • Author(s): 原田英治・鶴田修己・後藤仁志
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) Volume: 71 Issue: 2 Pages: I_493-I_498
  • DOI: 10.2208/kaigan.71.I_493
  • NAID: 130005109244
  • ISSN: 1883-8944, 1884-2399
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Vertical sorting process under oscillatory sheet flow condition by resolved discrete particle model (2015)
  • Author(s): Harada, E., Gotoh, H. and Tsuruta, N.
  • Journal Title: Journal of hydraulic research Volume: 53 Issue: 3 Pages: 332-350
  • DOI: 10.1080/00221686.2014.994139
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Image Analysis for Particulate Flow under Oscillatory Sheet-flow Regime (2014)
  • Author(s): 原田英治・後藤仁志
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) Volume: 70 Issue: 2 Pages: I_746-I_750
  • DOI: 10.2208/kaigan.70.I_746
  • NAID: 130004706971
  • ISSN: 1883-8944, 1884-2399
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Distribution of Shear Stress in Oscillatory Sheet-flow Layer by LES (2013)
  • Author(s): 原田英治・後藤仁志・鶴田修己
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) Volume: 69 Issue: 2 Pages: I_556-I_560
  • DOI: 10.2208/kaigan.69.I_556
  • NAID: 130004551140
  • ISSN: 1883-8944, 1884-2399
  • Peer Reviewed
• [Presentation] DEMによる流砂研究の現状 (2015)
  • Author(s): 原田英治
  • Organizer: 平成27年度基礎水理シンポジウム
  • Place of Presentation: 土木学会講堂
  • Year and Date: 2015-12-07
  • Invited
• [Presentation] 流砂水理学の発展と数値移動床の役割 (2015)
  • Author(s): 原田英治
  • Organizer: 河川・海岸の土砂水理に関するワークショップ
  • Place of Presentation: 土木学会講堂
  • Year and Date: 2015-10-19
  • Invited