Stability of Flow Between Eccentric Rotating Cylinders

Masayuki Oikawa, Takashi Karasudani, Mitsuaki Funakoshi

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Scopus)

    Abstract

    The linear stability of two-dimensional steady flows between two long, eccentric, rotating circular cylinders is studied numerically under the condition that the inner cylinder rotates uniformly while the outer one is at rest. By using the pseudospectral method it is found that the critical Reynolds number increases with the eccentricity ε. The critical axial wave number is found to remain nearly constant for small ε and to increase with larger ε. The eigenfunctions are distributed in the region from the position of the maximum gap to 180° downstream of that position. The Taylor-vortexlike three-dimensional steady flows are computed for several supercritical Reynolds numbers. The torques acting on the cylinders and the position of maximum vortex activity are calculated.

    Original languageEnglish
    Pages (from-to)2355-2364
    Number of pages10
    Journaljournal of the physical society of japan
    Volume58
    Issue number7
    DOIs
    Publication statusPublished - 1989

    All Science Journal Classification (ASJC) codes

    • General Physics and Astronomy

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