Grant-in-Aid for international Scientific Research
|Allocation Type||Single-year Grants|
|Research Institution||Tohoku University|
KAMIYAMA S. Institute of Fluid Science, Tohoku University, Professor, 流体科学研究所, 教授 (80006171)
CHANTRELL R. W. Dept of Physics, University of Keele, Professor, 物理学部, 教授
O'GRADY K. Dept. of Engng. University College of North Wales, Lecturer, 工学部, 講師
POPPLEWELL J. Dept. of Chemistry, University College of North Wales, Reader, 化学部, リーダー
CHARLES S. W. Dept. of Chemistry, University College of North Wales, Reader, 化学部, リーダー
NAKATSUKA K. Engng. Dept., Tohoku University, Professor, 工学部, 教授 (60005345)
山根 隆一郎 東京工業大学, 工学部, 教授 (50016424)
小池 和雄 東北学院大学, 工学部, 助教授 (20108575)
棚橋 隆彦 慶応義塾大学, 理工学部, 教授 (70051638)
YAMANE R. Engng. Dept., Tokyo Institute of Technology, Professor
TANAHASHI T. Science and Engng. Dept., Keio University, Professor
KOIKE K. Engng. Dept., Tohokugakuin Univrsity, Assoc. Professor
|Project Period (FY)
Completed(Fiscal Year 1991)
|Budget Amount *help
¥1,000,000 (Direct Cost : ¥1,000,000)
Fiscal Year 1991 : ¥1,000,000 (Direct Cost : ¥1,000,000)
|Keywords||Magnetic Fluid / Aggregation Phenomena / Fine Particles / Magnetic Field / Rheology / Pipe Flow|
Research group was organized to conduct the research on aggregation and flow characteristics of magnetic fluids between Japan and United Kingdom.
Research subjects are as follows :
(1) Particle aggregation of magnetic fluid, (2) Preparation and physical properties of magnetic fluid, (3) Pipe flow characteristics (4) Applications.
In the first subject (1), it is clarified that the attraction force due to the hydrophobio bond between surfactant layers as well as the magnetic force, play an important role in the aggregation of particles in the case of wate magrietio fluid. Also three dimensional Monte-Carlo simulation is extended to calculate the cluster formation in colloid by taking into account a particle-particle interaction.
In the second subject (2), new magnetic fluid whose magnetication is 3 - 4 times higher than the ordinary magnetic fluid was prepared. Hence, the physical properties and the stability in the severe environment are investigated. Also, ionic magnetic fluid which does not use surfactant is prepared the dispersion of particles is investigated.
In the third subject (3), the oscillatory pipe flow characteristics are investigated theoretically. The analytical results explain well the experimental results.
Also, the basic equations describing mechanics of a magnetic fluid are derived to explain the visomlastic properties of magnetic fluid.
In the subject (4), applications to new energy conversion system and heat pipe by utilizing a boiling two-phase flow are investigated.