Heat Transfer & Transport Phenomena in Microscale

ISBN Print: 1-56700-150-5

CHAOTIC BEHAVIORS AND TRANSITION TO TURBULENCE IN POROUS MEDIA

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DOI: 10.1615/1-56700-150-5.410
pages 299-303

Takashi Masuoka The University of Kitakyushu, and Department of Mechanical Engineering, Kyushu University, Kyushu, Japan

Yasuyuki Takatsu Department of Mechanical Engineering Kyushu Institute of Technology 1 -1, Sensui-Cho, Tobata-Ku Kitakyushu, 804 Japan; Department of Mechanical Engineering, Hiroshima Kokusai Gakuin University 6-20-1 Nakano, Aki-ku, Hiroshima 739-0321, JAPAN

Tomomi Inoue Department of Mechanical Science and Engineering, Kyushu University 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, JAPAN

Abstrakt

An experimental study has been made on the chaotic behaviors in the transition to turbulence of flow through porous media consisting of a bank of tube in a narrow gap. Judging from the examination on the correlation dimension and the maximum Lyapunov exponents, we can identify the chaotic behaviors in porous media for Re>~60. Rapid incerease in the maximum Lyapunov exponents was observed for Re>~300. Also the spatial distribution of the Lyapunov exponents was discussed.

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