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No. 66 (2004/03) >

 
Title :On the Motion of a Vortex Ring and a Vortex Pair : Have we had a centurial misunderstanding?
Authors :Nagai, Minoru
Ameku, Kazumasa
Authors alternative :永井, 實
天久, 和正
Issue Date :Mar-2004
Abstract :To examine the engineering application of an artificial vortex ring, the induced velocity field around a vortex ring has been studied with the potential flow theory. As results, since the induced velocity becomes zero far apart from the vortex ring, the ring does not move by its own induced flow field. In other words, a vortex ring does not necessarily move at the speed as usually it might have been misunderstood. In this paper, the flow field induced by a vortex ring and then superimposing various strength uniform flows on the field are calculated and discussed. This paper also clears that two parallel straight vortex lines neighboring to each other do not necessarily rotate or go parallel with the velocities, which may have been misunderstood for longtime.
Type Local :紀要論文
ISSN :0389-102X
Publisher :琉球大学工学部
URI :http://hdl.handle.net/20.500.12000/1454
Citation :琉球大学工学部紀要 no.66 p.1 -5
Appears in Collections:No. 66 (2004/03)

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