CHAOTIC BEHAVIOR AND TRANSITION TO TURBULENCE IN POROUS MEDIA |
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| Authors: | Takashi Masuoka Yasuyuki Takatsu Tomomi Inoue |
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| Affiliation: | 1. Department of Mechanical Science and Engineering, Kyushu University, Fukuoka, Japan;2. Department of Mechanical Engineering, Hiroshima Kokusai Gakuin University, Hiroshima, Japan |
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| Abstract: | An experimental study has been made of the chaotic behavior in the transition to turbulence of flow through porous media consisting of a bank of tubes in a narrow gap. Judging from the examination of the correlation dimension and the maximum Lyapunov exponents, we can identify the chaotic behavior in porous media for Re > ～60. Rapid increase in the maximum Lyapunov exponents was observed for Re > ～300. Also, the spatial distribution of the Lyapunov exponents is discussed. |
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