@article{oai:muroran-it.repo.nii.ac.jp:00008527,
 author = {TAKAGI,  Shohei and 高木, 正平},
 journal = {室蘭工業大学紀要, Memoirs of the Muroran Institute of Technology},
 month = {Mar},
 note = {application/pdf, It is well known that both electromagnetic fields and irrotational fluid flows are governed by Laplace’s potential equation, and in two dimensional cases, solutions for a wide variety of boundary conditions are readily obtainable through use of a complex potential function. This paper describes a simple electric experiment that was developed for instructional purposes in a fluid mechanics laboratory, which exploits the analogy between source-sink (doublet) flows and the electromagnetic field created by two point charges in a conducting medium. The apparatus consists of two electrodes (which correspond to the source and the sink) separated by some distance on a conductive paper, onto which a prescribed DC voltage difference is imposed. In the resulting electric field, lines of equal voltage represent equi-velocity potential lines in source-sink flows. The electric current lines correspond to streamlines in the flow field and are visualized with the aid of iron filings and round magnets. This method is also useful to enhance appropriate understanding of the doublet flow in the infinite limit when the distance between source and sink approaches zero., 教育改善報告},
 pages = {145--150},
 title = {流体運動と電磁場のアナロジーを用いて理解促進を目指した学生実験 : 湧き出し・吸い込みと二重湧き出し},
 volume = {63},
 year = {2014},
 yomi = {タカギ, ショウヘイ}
}