The Development Process of Self-Sustained Oscillatory Flow in a Grooved Channel

くぼみ付き流路内自律振動流の発達過程

The Development Process of Self-Sustained Oscillatory Flow in a Grooved Channel

Creators Kunitsugu Koji

Creators Nishimura Tatsuo

The development process of self-sustained oscillation in a grooved channel, in the stream-wise direction, is studied by the electrochemical method. The unsteady wall shear stress measurements show that the flow periodicity in the stream-wise direction is preserved after the onset of the self-sustained oscillation. However, as the Reynolds number is further increased, the flow periodicity is not kept and the magnitude of unsteadiness increases in the downstream direction.

[ISSN]1345-5583

[NCID]AA11422756

[isVersionOf] [URI]http://memoirs.lib-e.yamaguchi-u.ac.jp/