EXPERIMENTAL ANALYSIS OF OSCILLATORY AIR FLOW IN MULTI-BIFURCATED CHANNEL TERMINATED WITH DIFFERENT COMPLIANCE

• Project/Area Number: 19560158
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Saitama University
• Principal Investigator: KAWAHASHI Masaaki Saitama University, 副学長 (70008853)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2007: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 呼吸流 / 人工換気 / HFOV / 振り子流 / マイクロPIV / 人工呼吸

Research Abstract

肺の末端組織である呼吸細気管支の各分岐子端は、異なるコンプライアンスを有する肺胞組織に接続されており、その部分で生じている呼吸振動流の挙動、特にコンプライアンスの相違による各分岐子の時定数の違いが要因となって生じる振り子流は、重要な呼吸換気メカニズムの一つと考えられてきたが、その詳細は明らかにされてこなかった。本研究では、多分岐呼吸細気管支の実寸モデルを用いて、振り子流の存在および流れの時系列的変化の詳細を実験的に明らかにした。

Research Products

• [Journal Article] Experimental Analysis of Oscillatory Airflow in a Bronchiole Model with Stenosis (2009)
  • Author(s): Kim, J-K., Kawahashi, M., Hirahara, H., and Iwasaki, .Y
  • Journal Title: Journal of Visualization vol.12 Pages: 109-118
  • Peer Reviewed
• [Journal Article] Experimental Analysis of Oscillatory Airflow in a Bronchiole Model with Stenosis (2009)
  • Author(s): Kim, J-K., Kawahashi, M., Hirahara, H. and Iwasaki,. Y
  • Journal Title: Journal of Visualization 12 Pages: 109-208
  • Peer Reviewed
• [Journal Article] 振り子流を伴う呼吸細気管支モデル内の振動気流実験解析 (2008)
  • Author(s): KIM J-K, 川橋正昭, 岩崎雄介, 平原裕行
  • Journal Title: 実験力学(日本実験力学会誌) 8巻 Pages: 78-83
  • NAID: 10024327589
  • Peer Reviewed
• [Journal Article] 振り子流を伴う呼吸細気管支モデル内の振動気流実験解析 (2008)
  • Author(s): Jin-Kyu KIM、川橋正昭、岩崎雄介、平原裕行
  • Journal Title: 実験力学(日本実験力学会誌) 8 Pages: 78-83
  • NAID: 10024327589
  • Peer Reviewed
• [Presentation] Experimental Analysis of Airflow in a Multi-bifurcated Micro Channel Simulating Oscillatory Flows at Respiratory Bronchioles in Condition of HFOV (2008)
  • Author(s): Kim, J-K
  • Organizer: 13th International Symposium on Flow Visualization
  • Place of Presentation: ニース国際会議場(フランス)
  • Year and Date: 2008-07-04
• [Presentation] PIV measurements of pendelluft flows generated in a multi-bifurcated bronchial model in HFOV (2008)
  • Author(s): Kawahashi, M
  • Organizer: 2008 Korea-Japan Joint Seminar on Particle Image Velocimetry
  • Place of Presentation: 建国大学(韓国)
• [Presentation] Experimental Analysis of Airflow in a Multi-bifurcated Micro Channel Simulating Oscillatory Flows at Respiratory Bronchiolesin Condition of HFOV (2008)
  • Author(s): Kim, J-K, Matumoto, K., Kawahashi, M., Hirahara, H.
  • Organizer: 13th International Symposium on Flow Visualization
  • Place of Presentation: Nice, France
• [Presentation] PIV measurements of pendelluft flows generated in amulti-bifurcated bronchial model in HFOV (2008)
  • Author(s): Matumoto, K., Kim, J-K, Kawahashi, M., Hirahara, H.
  • Organizer: 2008 Korea-Japan Joint Seminar on Particle Image Velocimetry
  • Place of Presentation: Seoul, Korea
• [Presentation] マイクロ気管支モデルを用いた振り子流解析 (2007)
  • Author(s): 岩崎雄介
  • Organizer: 日本機械学会流体工学部門講演会
  • Place of Presentation: 広島大学
  • Year and Date: 2007-11-17
• [Presentation] 呼吸細気管支モデル内の振動流解析 (2007)
  • Author(s): 川橋正昭
  • Organizer: 可視化情報学会全国講演会
  • Place of Presentation: 岐阜大学
  • Year and Date: 2007-09-26
• [Presentation] 呼吸細気管支モデル内の振動流解析 (2007)
  • Author(s): 川橋, 岩崎, Kim, 平原
  • Organizer: 可視化情報学会全国講演会(岐阜)
  • Place of Presentation: 岐阜大学
  • Year and Date: 2007-09-26
• [Presentation] Experimental analysis of pendelluft air flow as a micro channel of respiration bronchiole region (2007)
  • Author(s): Kim, J-K
  • Organizer: 日本機械学会全国大会講演会
  • Place of Presentation: 関西大学
  • Year and Date: 2007-09-12
• [Presentation] Experimental analysis of pendelluft air flow as a micro channel of respiration bronchioleregion (2007)
  • Author(s): Kim, Iwasaki, Kawahashi and Hirahara.
  • Organizer: 日本機械学会全国大会講演会
  • Place of Presentation: 関西大学
  • Year and Date: 2007-09-12
• [Presentation] Experimental Analysis of Pendelluft Airflow Generated by HFOV in Human Bronchial Lung Model (2007)
  • Author(s): Kim, J-K
  • Organizer: 18th International Symposium on Transport Phenomena
  • Place of Presentation: KAIST(韓国)
  • Year and Date: 2007-08-28
• [Presentation] Experimental analysis of pendelluft airflow generated by HFOV in human bronchial lung model (2007)
  • Author(s): Kim, Iwasaki, Kawahashi and Hirahara.
  • Organizer: The 18th Intemational Symposium on Transport Phenomena
  • Place of Presentation: Korea
  • Year and Date: 2007-08-28
• [Presentation] Measurement of oscillatory airflow in a micro bronchial tube model with semicircle stenosis (2007)
  • Author(s): Kim, Lee, Kawahashi and Hirahara.
  • Organizer: The 9th Asian Symposium on Visualization
  • Place of Presentation: Hong Kong
  • Year and Date: 2007-06-06
• [Presentation] Measurement of oscillatory airflow in a micro bronchial tube model with semicircle stenosis with semicircle stenosis (2007)
  • Author(s): Kim, J-K
  • Organizer: 9th Asian Symposium on Visualization
  • Place of Presentation: 香港科学技術大学(香港)
  • Year and Date: 2007-06-05