Stabilities of the Combination of Moving Bodies in a Fluid Tube

2008 Fiscal Year Final Research Report

• Project/Area Number: 19560239
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: Keio University
• Principal Investigator: YOSHIZAWA Masatsugu Keio University, 理工学部, 教授 (10095664)
• Project Period (FY): 2007 – 2008
• Keywords: 運動力学 / 多体系 / 流体関連 / 数値計算 / 実験

Research Abstract

本研究では, 流体管路内における単独移動物体の動的挙動ならびに周囲流体の非定常運動を, 解析解ならびに数値解による理論的検討, PIVによる可視化実験により明らかにした.さらに複数連結の代表的な場合として, 3両連結の移動物体の場合についての実験を行い, 連結移動物体の通過に伴う管内非定常圧力分布に及ぼすバイパスホールの影響ならびに連結部分における非定常流体運動の特徴を明らかにした.

Research Products

• [Presentation] DYNAMICS OF A MOVING BODY WITH THE HOLE IN ITS CENTER AND CHARACTERISTICS OF FLUID FLOW IN A SMALL DIAMETER TUBE (2009)
  • Author(s): Toru Maeda, Akihiro Sato, Tatsuya Otsuka, Masatsugu Yoshizawa
  • Organizer: American Society of Mechanical Engineers International Mechanical Engineering Congress and Exposition
  • Place of Presentation: Lake Buena Vista Florida USA
  • Year and Date: 20091100
• [Presentation] TRANSIENT MOTION OF A RIGID BODY THROUGH A NARROW TUBE AND CHARACTERISTICS OF SURROUNDING FLUID FLOW (2008)
  • Author(s): Tatsuya Otsuka , Daichi Ishii, Toru Maeda, Masatsugu Yoshizawa
  • Organizer: American Society of Mechanical Engineers International Mechanical Engineering Congress and Exposition
  • Place of Presentation: Boston, Massachusetts, USA
  • Year and Date: 2008-11-03
• [Presentation] 細管内を移動する球の運動に及ぼす管壁の効果 (2008)
  • Author(s): 大塚達也、横山亮太、長澤潔、吉沢正紹
  • Organizer: 日本機械学会Dynamics and Design Conference 2008
  • Place of Presentation: 慶應義塾大学日吉キャンパス
  • Year and Date: 2008-09-05
• [Presentation] 狭い管路内に弾性支持された円柱の渦励起振動(流路幅の影響) (2008)
  • Author(s): 前田徹、竹間克俊、長澤潔、吉沢正紹
  • Organizer: 2008年度日本機械学会年次大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2008-08-03
• [Presentation] 狭い管路内に弾性支持された円柱の横振動(流路幅が共振状態に与える影響) (2007)
  • Author(s): 竹間克俊、加藤修一、前田徹、吉沢正紹
  • Organizer: 日本機械学会第20回計算力学講演会
  • Place of Presentation: 同志社大学京田辺キャンパス
  • Year and Date: 2007-11-27
• [Presentation] CHARACTERISTICS OF FLUID FLOW BETWEEN SINGLE RIGID BODY AND WALL OF SMALL-DIAMETER TUBE (2007)
  • Author(s): Daichi Ishii, Kohei Aratake, Tatsuya Otsuka,Masatsugu Yoshizawa
  • Organizer: 2007American Society of Mechanical Engineers International Mechanical Engineering Congress and Exposition
  • Place of Presentation: Seattle, Washington, USA
  • Year and Date: 2007-11-14
• [Presentation] 細長い流体管路内を移動する物体周りの流れ場の基礎的検討 (2007)
  • Author(s): 石井大地、荒武紘平、大塚達也、吉沢正紹
  • Organizer: 日本機械学会関東支部第31期総会・講演会・懇談会、
  • Place of Presentation: 宇都宮大学峰キャンパス
  • Year and Date: 2007-03-15