Development of online ultrasonic Doppler rheometry

• Project/Area Number: 18KK0105
• Research Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 19:Fluid engineering, thermal engineering, and related fields
• Research Institution: Hokkaido University
• Principal Investigator: Murai Yuichi 北海道大学, 工学研究院, 教授 (80273001)
• Co-Investigator(Kenkyū-buntansha): PARK HYUNJIN 北海道大学, 工学研究院, 助教 (00793671) ; 熊谷 一郎 明星大学, 理工学部, 教授 (50597680)
• Project Period (FY): 2018-10-09 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000); Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
• Keywords: レオロジー / 超音波 / 非ニュートン流体 / 粘土 / 食品 / 混相流 / せん断流れ / ドップラー法 / 流体計測 / 画像処理 / PIV / UVP / データ同化 / 流体工学 / 物性計測 / 複雑流体 / オンライン計測 / 物性 / 非接触計測 / 不透明流体 / 機械学習

Outline of Final Research Achievements

In this project, collaborative research with ETHZ, PEFL and Tianjin university has been promoted. As results, five papers has been published: rheology of cray in ACS, extension of ultrasonic spinning rheometry in Exp Fluids, Pulsatile pipe flow rheometry in IEDR, review article on ultrasonic measurement of multiphase flow in IJMF, and review of spinning rheometry in Japan Rhelogy Society.

Academic Significance and Societal Importance of the Research Achievements

様々な組成をもつ非ニュートン流体や混相流の粘度を瞬時に明らかにする技術は，工業生産現場，食品工業，廃棄物など環境対応技術において有益であり，本課題では超音波によってそのようなリアルタイム物性計測技術を開発することに注力した．スイス連邦工科大学チューリッヒ校(ETH)との共同開発により，流動する材料の物理モデルを構築し，超音波による速度分布や組成分布の計測と連結した汎用技術を構築した．特に粘土質の物質，組成に空間分布をもつ食品の流れ，内部に界面を有する物質のレオロジー物性を展開する方法論が完成した．

Research Products

• [Int'l Joint Research] スイス連邦工科大学チューリッヒ校/スイス連邦工科大学ローザンヌ校(スイス)
• [Int'l Joint Research] 天津大学(中国)
• [Int'l Joint Research] スイス連邦工科大学チューリッヒ校/スイス連邦工科大学ローザンヌ校(スイス)
• [Int'l Joint Research] 天津大学/中国石油大学(中国)
• [Int'l Joint Research] スイス連邦工大学チューリッヒ校(スイス)
• [Int'l Joint Research] 天津大学(中国)
• [Int'l Joint Research] スイス連邦工大学チューリッヒ校'(TEH)/スイス連邦工科大学ローザンヌ校(EPFL)(スイス)
• [Journal Article] Overview of Ultrasonic Spinning Rheometry: Application to Complex Fluids (2022)
  • Author(s): T.Yoshida, Y.Tasaka, K.Ohie, Y.Murai
  • Journal Title: Nihon Reoroji Gakkaishi Volume: 50 Issue: 1 Pages: 3-7
  • DOI: 10.1678/rheology.50.3
  • ISSN: 0387-1533, 2186-4586
  • Year and Date: 2022-02-15
  • Peer Reviewed / Open Access
• [Journal Article] Time-dependent viscoelastic characteristics of montmorillonite dispersion examined by ultrasonic spinning rheometry (2022)
  • Author(s): T.Yoshida, Y.Tasaka, P.Fischer, Y.Murai
  • Journal Title: Applied Clay Science Volume: 217 Pages: 106395-106395
  • DOI: 10.1016/j.clay.2021.106395
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Efective rheology mapping for characterizing polymer solutions utilizing ultrasonic spinning rheometry (2022)
  • Author(s): K.Ohie, T.Yoshida, Y.Tasaka, Y.Murai
  • Journal Title: Experiments in Fluids Volume: 63 Issue: 2 Pages: 40-40
  • DOI: 10.1007/s00348-022-03382-0
  • Peer Reviewed
• [Journal Article] Ultrasonic velocity profiler applied to explore viscosity-pressure fields and their coupling in ineastic shear thinning vortex streets (2021)
  • Author(s): N.Tiwari, Y.Murai
  • Journal Title: Experiments in Fluids Volume: 62 Issue: 9 Pages: 185-185
  • DOI: 10.1007/s00348-021-03257-w
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Non-intrusive in-line rheometry using ultrasonic velocity profiling (2021)
  • Author(s): Y.Tasaka, T.Yoshida, Y.Murai
  • Journal Title: Industrial and Engineering Chemistry Research Volume: 60 Pages: 11535-11543
  • Peer Reviewed
• [Journal Article] Ultrasonic Doppler technique for applications in multiphase flow: a review (2021)
  • Author(s): C.Tan, Y.Murai, W.Liu, Y.Tasaka, F.Dong, Y.Takeda
  • Journal Title: International Journal of Multiphase Flow Volume: 144 Pages: 103811-103811
  • DOI: 10.1016/j.ijmultiphaseflow.2021.103811
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] PIV-based estimation of viscosity and pressure fields for a steady pseudoplastic flow (2021)
  • Author(s): N.Tiwari, Y.Tasaka, Y.Murai
  • Journal Title: Flow Measurement and Instrumentation Volume: 77 Pages: 101852-101852
  • DOI: 10.1016/j.flowmeasinst.2020.101852
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Measurement of the inner structure of turbidity currents by ultrasound velocity profiling (2021)
  • Author(s): Hitomi Jumpei、Nomura Shun、Murai Yuichi、De Cesare Giovanni、Tasaka Yuji、Takeda Yasushi、Park Hyun Jin、Sakaguchi Hide
  • Journal Title: International Journal of Multiphase Flow Volume: 136 Pages: 103540-103540
  • DOI: 10.1016/j.ijmultiphaseflow.2020.103540
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Application of PIV-based Pressure Field Estimation for Wind Tunnel and Water Tank Experiments (2020)
  • Author(s): 村井祐一，田坂裕司，朴 炫珍
  • Journal Title: Journal of the Japanese Society for Experimental Mechanics Volume: 20 Issue: 2 Pages: 87-94
  • DOI: 10.11395/jjsem.20.87
  • NAID: 130007871577
  • ISSN: 1346-4930, 1884-4219
  • Year and Date: 2020-07-09
• [Journal Article] Rheometric Test for Multiphase Fluids by Means of Ultrasonic Spinning Rheometry (2020)
  • Author(s): 芳田泰基，田坂裕司，大家広平，村井祐一
  • Journal Title: JAPANESE JOURNAL OF MULTIPHASE FLOW Volume: 34 Issue: 2 Pages: 334-341
  • DOI: 10.3811/jjmf.2020.T009
  • NAID: 130007872610
  • ISSN: 0914-2843, 1881-5790
  • Year and Date: 2020-06-15
• [Journal Article] Evaluation on time variation of effective viscosity by ultrasonic spinning rheometry (Application to separating oil-water mixture) (2020)
  • Author(s): 大家広平，芳田泰基，朴炫珍，田坂裕司，村井祐一
  • Journal Title: Transactions of the JSME (in Japanese) Volume: 86 Issue: 890 Pages: 20-00242-20-00242
  • DOI: 10.1299/transjsme.20-00242
  • NAID: 130007930463
  • ISSN: 2187-9761
  • Peer Reviewed / Open Access
• [Journal Article] Interaction between a falling sphere and the structure of a non-Newtonian yield-stress fluid (2020)
  • Author(s): Sgreva, N.R., Davaille, A., Kumagai, I., and Kurita K.
  • Journal Title: Journal of Non-Newtonian Fluid Mechanics Volume: 284 Pages: 104355-104355
  • DOI: 10.1016/j.jnnfm.2020.104355
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Oil-gas-water three-phase flow characterization and velocity measurement based on time-frequency decomposition (2019)
  • Author(s): X.Shi, C.Tan, F.Dong, Y.Murai
  • Journal Title: International Journal of Multiphase Flow Volume: 111 Pages: 219-231
  • DOI: 10.1016/j.ijmultiphaseflow.2018.11.006
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Bubbly drag reduction investigated by time-resolved ultrasonic pulse echography for liquid films creeping inside a turbulent boundary layer (2019)
  • Author(s): H.J.Park, Y.Tasaka, Y.Murai
  • Journal Title: Experimental Thermal and Fluid Science Volume: 103 Pages: 66-77
  • DOI: 10.1016/j.expthermflusci.2018.12.025
  • Peer Reviewed
• [Journal Article] Efficacy assessments in ultrasonic spinning rheometry: linear viscoelastic analysis on non-Newtonian fluids (2019)
  • Author(s): T.Yoshida, Y.Tasaka, Y.Murai
  • Journal Title: Journal of Rheology Volume: 63 Issue: 4 Pages: 503-503
  • DOI: 10.1122/1.5086986
  • Peer Reviewed
• [Journal Article] Effective viscoelasticity of non-Newtonian fluids modulated by large-spherical particles aligned under unsteady shear (2019)
  • Author(s): T.Yoshida, Y.Tasaka, Y.Murai
  • Journal Title: Physics of Fluids Volume: 31 Issue: 10 Pages: 103304-103304
  • DOI: 10.1063/1.5119335
  • Peer Reviewed
• [Journal Article] Impact of air flow on the heat transfer conditions inside an open cavity characterized using particle imaging velocimetry (2019)
  • Author(s): A.Garg, C.Shrivastava, Y.Murai, E.J.Windhab
  • Journal Title: Physics of Fluids Volume: 31 Pages: 101109-101109
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] 気液二相乱流の超音波モニタリング (2019)
  • Author(s): 村井祐一，田坂裕司，朴炫珍
  • Journal Title: 可視化情報 Volume: 39 Pages: 11-16
  • NAID: 130007920956
  • Peer Reviewed / Open Access
• [Journal Article] 超音波流速分布計測を用いた複雑流体のレオロジー物性評価 (2019)
  • Author(s): 田坂裕司，芳田泰基，村井祐一
  • Journal Title: ながれ Volume: 38 Pages: 283-290
  • Peer Reviewed / Open Access
• [Journal Article] 複雑不規則流動解析のための計測と予測の融合ツール (2019)
  • Author(s): 村井祐一
  • Journal Title: ターボ機械協会誌 Volume: 47 Pages: 50-56
  • Peer Reviewed
• [Journal Article] Pressure field estimation from ultrasound Doppler velocity profiler for vortex-shedding flows (2019)
  • Author(s): Tiwari Neetu、Tasaka Yuji、Murai Yuichi
  • Journal Title: Flow Measurement and Instrumentation Volume: 67 Pages: 23-32
  • DOI: 10.1016/j.flowmeasinst.2019.03.009
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Behavior of bubbles moving along horizontal flat plates with different surface wettability (2019)
  • Author(s): Kitagawa Atsuhide、Denissenko Petr、Murai Yuichi
  • Journal Title: Experimental Thermal and Fluid Science Volume: 104 Pages: 141-152
  • DOI: 10.1016/j.expthermflusci.2019.02.017
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Transition from convection rolls to large-scale cellular structures in turbulent Rayleigh-Benard convection in a liquid metal layer (2019)
  • Author(s): Akashi Megumi、Yanagisawa Takatoshi、Tasaka Yuji、Vogt Tobias、Murai Yuichi、Eckert Sven
  • Journal Title: Physical Review Fluids Volume: 4 Issue: 3 Pages: 033501-033501
  • DOI: 10.1103/physrevfluids.4.033501
  • NAID: 120006603702
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Ultrasound velocity profiling-based viscosity and pressure estimation in shear-thinning unsteady flow (2021)
  • Author(s): N.Tiwari, Y.Murai
  • Organizer: Proc. 13th International Symposium on Ultrasound Doppler Method 2021 - Zurich, pp. 65-70 (BA: pp.29-32)(2021.6/14-15)
  • Int'l Joint Research
• [Presentation] In-line rheometry based on ultrasonic velocity profile measurement for non-Newtonian fluids (2021)
  • Author(s): Y.Tasaka, T.Yoshida, Y.Murai
  • Organizer: Proc. 13th International Symposium on Ultrasound Doppler Method 2021 - Zurich, pp. 131-136 (BA: pp.20-24)(2021.6/14-15)
  • Int'l Joint Research
• [Presentation] Measurement of size and velocity of rising bubbles by a vector UVP (2021)
  • Author(s): H.J.Park, S.Akasaka, Y.Tasaka, Y.Murai
  • Organizer: Proc. 13th International Symposium on Ultrasound Doppler Method 2021 - Zurich, pp. 131-136 (BA: pp.20-24)(2021.6/14-15)
  • Int'l Joint Research
• [Presentation] UVP applied for Doppler scanning of fruit-internal structures and its working principle (2021)
  • Author(s): Y.Murai, T.Yoshida, H.J.Park, Y.Tasaka
  • Organizer: Proc. 13th International Symposium on Ultrasound Doppler Method 2021 - Zurich, pp. 131-136 (BA: pp.20-24)(2021.6/14-15)
  • Int'l Joint Research
• [Presentation] Comprehensive evaluation for viscoelasticity of polyvinylpyrrolidone aqueous solutions by utilizing novel map representation (2021)
  • Author(s): K.Ohie, T.Yoshida, Y.Tasaka, M.Seki, Y.Murai
  • Organizer: Proc. 13th International Symposium on Ultrasound Doppler Method 2021 - Zurich, pp. 131-136 (BA: pp.20-24)(2021.6/14-15)
  • Int'l Joint Research
• [Presentation] A novel multiple rheology mapping by ultrasonic spinning rheometry (2021)
  • Author(s): K.Ohie,T.Yoshida, H.J.Park,Y.Tasaka,Y.Murai
  • Organizer: Proc. 25th International Congress of Theoretical and Applied Mechanics
  • Int'l Joint Research
• [Presentation] An idea for non-invasive in-line rheometry based on spatio-temporal velicity information (2021)
  • Author(s): Y.Tasaka, T.Yoshida, K.Ohie, Y.Murai
  • Organizer: Proc. 25th International Congress of Theoretical and Applied Mechanics
  • Int'l Joint Research
• [Presentation] 非等方微粒子の混入がもたらす懸濁液の実効粘度変調 (2021)
  • Author(s): 陳博志， 高野哲秀，大家広平，堀本康文，朴炫珍，田坂裕司，村井祐一
  • Organizer: 機械学会北海道支部第50回学生員卒業研究発表講演会講演論文集
• [Presentation] 超音波パルスエコグラフィを用いた傾斜チャネルにおける境界層内気泡運動の評価 (2021)
  • Author(s): 尹 桐翊，朴炫珍，田坂裕司，村井祐一
  • Organizer: 混相流シンポジウム2021講演論文集
• [Presentation] 超音波スピニングレオメトリに基づく可搬型レオメータの提案 (2021)
  • Author(s): 芳田泰基，大家広平，田坂裕司，村井祐一
  • Organizer: 日本機械学会第99期流体工学部門講演会講演論文集
• [Presentation] 超音波インラインレオメータの解析アルゴリズム改善の試み (2021)
  • Author(s): 田坂裕司，芳田泰基，，村井祐一
  • Organizer: 日本機械学会第99期流体工学部門講演会講演論文集
• [Presentation] 振動せん断下におけるミリバブル懸濁液の実効粘度評価 (2021)
  • Author(s): 大家広平，芳田泰基，田坂裕司，村井祐一
  • Organizer: 日本機械学会第99期流体工学部門講演会講演論文集
• [Presentation] 非ニュートン性流体の粘弾性は粒子の分散状態に影響されるか？ (2021)
  • Author(s): 芳田泰基，田坂裕司，村井祐一
  • Organizer: 日本機械学会流体工学部門ニューズレター
  • Invited
• [Presentation] 超音波を用いた流動物性計測装置 (2021)
  • Author(s): 田坂裕司，大家広平，芳田泰基，村井祐一
  • Organizer: Nano tech 2022 第20回 国際ナノテクノロジー総合展・技術会議（東京ビッグサイト）
• [Presentation] レオロジーマップによる高分子溶液の多角的粘弾性評価 (2021)
  • Author(s): 大家広平，芳田泰基，朴炫珍，田坂裕司，村井祐一
  • Organizer: 日本化学工学会第86年会
• [Presentation] 超音波流速分布計測による過渡的レオロジー物性の評価 (2021)
  • Author(s): 田坂裕司，芳田泰基，大家広平，村井祐一
  • Organizer: 日本化学工学会第86年会
• [Presentation] Ultrasonic Doppler velocity profiler (UVP) based pressure field estimation in shear- thinning fluid flows (2020)
  • Author(s): N. Tiwari, Y. Tasaka, Y. Murai
  • Organizer: 17th International Conference on Flow Dynamics
  • Int'l Joint Research
• [Presentation] Improvement of Pressure Field Estimated from PIV Data by Irrotational Correction Schemes Based on Helmholtz Vector Decomposition (2020)
  • Author(s): N. Tiwari, Y. Murai
  • Organizer: 17th International Conference on Flow Dynamics
  • Int'l Joint Research
• [Presentation] 乱流境界層構造の計測に特化したカラーPIVシステムの開発 (2020)
  • Author(s): 山田健人，Lucas Grob，朴炫珍，田坂裕司，村井祐一
  • Organizer: 機械学会北海道支部第57回講演会
• [Presentation] 超音波スピニングレオメトリを用いた粘弾性流体の拡張表現 (2020)
  • Author(s): 大家広平，芳田泰基，朴炫珍，田坂裕司，村井祐一
  • Organizer: 流体力学会年会2020講演会
• [Presentation] 超音波スピニングレオメトリを用いた水油混合液の分離過程における実効粘度評価 (2020)
  • Author(s): 大家広平，芳田泰基，朴炫珍，田坂裕司，村井祐一
  • Organizer: 日本機械学会 第98期流体工学部門講演会
• [Presentation] チョコレート冷却プロセスにおける境界層内層構造の計測 (2020)
  • Author(s): 山田健人，朴炫珍，田坂裕司，村井祐一
  • Organizer: 日本機械学会 第98期流体工学部門講演会
• [Presentation] 超音波流速分布計測によるインラインレオメータの実用性検証 (2020)
  • Author(s): 田坂裕司，芳田泰基，村井祐一
  • Organizer: 日本機械学会 第98期流体工学部門講演会
• [Presentation] 非定常剪断下における分散粒子を含む非ニュートン流体の実効粘弾性 (2020)
  • Author(s): 芳田泰基，田坂裕司，村井祐一
  • Organizer: 日本機械学会 第98期流体工学部門講演会
• [Presentation] Rheological evaluations and capability assessments of ultrasonic spinning rheometry for non-Newtonian fluids (2019)
  • Author(s): T.Yoshida, Y.Tasaka, Y.Murai
  • Organizer: The Annual European Rheology Conference 2019
  • Int'l Joint Research
• [Presentation] Estimation of pressure field in shear thinning fluid flows based on ultrasound velocity profiler applied to vortex shedding flows (2019)
  • Author(s): N.Tiwari, Y.Tasaka, Y.Murai
  • Organizer: 8th International Symposium on Food Rheology and Structure
  • Int'l Joint Research
• [Presentation] Rheological and inner structural assessments for complex materials using ultrasonic spinning rheometry (2019)
  • Author(s): T.Yoshida, Y.Tasaka, Y.Murai
  • Organizer: 8th International Symposium on Food Rheology and Structure
  • Int'l Joint Research
• [Presentation] PIV-based pressure and stress field measurement for non-Newtonian flow fields (2019)
  • Author(s): Y.Murai, N.Tiwari, H.J.Park, Y.Tasaka
  • Organizer: 13th Int. Symposium on Particle Image Velocimetry
  • Int'l Joint Research
• [Presentation] Particle tracking rheometry for evaluating momentum transfer mechanism of interfacial particulate flows (2019)
  • Author(s): S.Yamagishi, H.Park, Y.Tasaka, Y.Murai
  • Organizer: 11th International Symposium on Measurement Techniques for Multiphse Flows
  • Int'l Joint Research
• [Presentation] Ultrasound pulse imaging of highly turbulent bubbly flows (2019)
  • Author(s): Y.Murai, S.Akasaka, HJ.Park, Yuji Tasaka
  • Organizer: 11th International Symposium on Measurement Techniques for Multiphse Flows
  • Int'l Joint Research
• [Presentation] 超音波を用いた非侵襲インラインレオメータ (2019)
  • Author(s): 田坂裕司，芳田泰基，村井祐一
  • Organizer: 日本機械学会 第97期 流体工学部門 講演会
• [Presentation] ファインバブルが見せる複素粘度 ～ そのメカニズムと産業応用事例 (2019)
  • Author(s): 村井祐一
  • Organizer: 第5回ファインバブル学会連合シンポジウム
  • Invited
• [Presentation] 流体機器のためのCFDと実験のデータ融合設計 (2019)
  • Author(s): 村井祐一
  • Organizer: 日本機械学会設計工学部門講演会1DCAE・MBDシンポジウム
  • Invited
• [Presentation] 計測・予測・制御の同化技術が創出する新しい道具 (2019)
  • Author(s): 村井祐一
  • Organizer: 日本学術会議機械工学委員会機械工学の将来展望分科会公開シンポジウム
  • Invited
• [Presentation] 超音波パルスエコグラフィを用いた高時空間分解能を持つ気泡分布計測手法の開発 (2019)
  • Author(s): 赤坂信太郎，朴炫珍，田坂裕司，村井祐一
  • Organizer: 可視化情報シンポジウム
• [Presentation] 壁面気液混相乱流計測のための光学的・音響的アプローチ (2019)
  • Author(s): 朴炫珍
  • Organizer: 混相流シンポジウム
  • Invited
• [Presentation] 超音波パルスエコー・ドップラー併用による混相流量計の開発 (2019)
  • Author(s): 村井祐一，朴炫珍，田坂裕司
  • Organizer: 混相流シンポジウム
• [Presentation] 超音波パルスエコグラフィーによる気液二相チャネル流の高時間分解計測 (2019)
  • Author(s): 赤坂信太郎，人見純平，澤田航希，朴炫珍，田坂裕司，村井祐一
  • Organizer: 機械学会北海道支部第48回学生員卒業研究発表講演会講演論文集, No.192-1, pp.155-156(2019.3)
• [Presentation] Ultrasonic spinning rheometry; concept and algorithms (2018)
  • Author(s): T.Tasaka,T.Yoshida,Y.Murai
  • Organizer: Proc. 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8), pp.3-3(2018.11/7-9)
  • Int'l Joint Research
• [Presentation] CFD assisted flow visualization for rheological fluids (2018)
  • Author(s): N.Tiwari,Y.Tasaka,Y.Murai
  • Organizer: Proc. 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8), pp.6-6(2018.11/7-9)
  • Int'l Joint Research
• [Presentation] Transition to turbulence in pipe flows of microbubble suspensions (2018)
  • Author(s): K.Nakamura,Y.Tasaka,Y.Murai
  • Organizer: Proc. 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8), pp.7-7(2018.11/7-9)
  • Int'l Joint Research
• [Presentation] Capability assessments of ultrasonic spinning rheometry for non-Newtonian fluid (2018)
  • Author(s): T.Yoshida,Y.Tasaka,Y.Murai
  • Organizer: Proc. 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8), pp.8-8(2018.11/7-9)
  • Int'l Joint Research
• [Presentation] A proposal of a novel flow visualization method using rheoscopic fluid (2018)
  • Author(s): D.Noto,J.Hitomi,H.J.Park,Y.Tasaka,Y.Murai
  • Organizer: Proc. 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8), pp.9-9(2018.11/7-9)
  • Int'l Joint Research
• [Presentation] Comparison of flow behaviors between experimental turbidity currents and saline density currents combining ultrasonic and optical techniques (2018)
  • Author(s): J.Hitomi,S.Nomura,G.De Cesare,Y.Takeda,H.J.Park,Y.Tasaka,Y.Murai
  • Organizer: Proc. 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8), pp.10-10(2018.11/7-9)
  • Int'l Joint Research
• [Presentation] Interactive flows between a moving cylinder and floating particles as a 2D granular flow experiment (2018)
  • Author(s): K.Iwasa, H.J.Park, Y.Tasaka, Y.Murai
  • Organizer: Proc. 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8), pp.11-11(2018.11/7-9)
  • Int'l Joint Research
• [Presentation] Ultrasonic measurement of milk products flowing in stainless steel pipe (2018)
  • Author(s): R.Li, T.Yoshida, Y.Tasaka, Y.Murai
  • Organizer: Proc. 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8), pp.12-12(2018.11/7-9)
  • Int'l Joint Research
• [Presentation] Aerodynamic characteristics of an airfoil with a large cavity in low-Reynolds number regime (2018)
  • Author(s): Y.Koyama, H.J.Park, Y.Tasaka, Y.Murai
  • Organizer: Proc. 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8), pp.13-13(2018.11/7-9)
  • Int'l Joint Research
• [Presentation] Ultrasonic scan-imaging technology for visualizing internal structures (2018)
  • Author(s): Y.Murai
  • Organizer: Proc. 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8), pp.36-36(2018.11/7-9)
  • Int'l Joint Research / Invited
• [Presentation] ステンレス管内を流れる乳製品の超音波診断 (2018)
  • Author(s): 李 瑞雪，芳田泰基，人見純平，澤田航希，朴 炫珍，田坂裕司，村井祐一, Stéphane Fischer
  • Organizer: 日本機械学会 第96期 流体工学部門 講演会 講演論文集, AM5-OS4-1, pp.1-3(2018.11/29-30)
• [Presentation] 超音波スピニングレオメトリ (2018)
  • Author(s): 田坂裕司，芳田泰基，朴炫珍，村井祐一
  • Organizer: 日本機械学会 第96期 流体工学部門 講演会 講演論文集, AM6-OS4-2, pp.1-3(2018.11/29-30)
• [Presentation] 食品内部を超音波で可視化する最新技術 (2018)
  • Author(s): 村井祐一
  • Organizer: 北海道経済連合会・一般社団法人北海道食産業総合振興機構主催ロバスト農業セミナー(2018.11.5)
  • Invited
• [Patent(Industrial Property Rights)] 非接触型レオロジー物性計測装置、システム、プログラムおよび方法 (2019)
  • Inventor(s): 田坂裕司，芳田泰基，村井祐一
  • Industrial Property Rights Holder: 田坂裕司，芳田泰基，村井祐一
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2019-056493
  • Filing Date: 2019
• [Patent(Industrial Property Rights)] 非接触型レオロジー物性計測装置、システム、プログラムおよび方法 (2019)
  • Inventor(s): 田坂裕司，芳田泰基，村井祐一
  • Industrial Property Rights Holder: 田坂裕司，芳田泰基，村井祐一
  • Industrial Property Rights Type: 特許
  • Filing Date: 2019
  • Overseas
• [Funded Workshop] スイス連邦工大学・北海道大学学術交流シンポジウム (2019)
• [Funded Workshop] 8th ETH-HU Academic Exchange and Cooperative Research (AECoR8) (2018)