Formation Process of the Traveling-Wave State with a Defect in Binary Fluid Connection : Condensed Matter and Statistical Physics
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概要
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We give results of simulations on the transient evolution from conduction to an extended traveling wave (ETW) state containing a sink defect slightly above the onset of the subcritical instability for a binary fluid mixture with the separation ratio ψ = -0.47 confined in a rectangular cell of aspect ratio Γ = 46. The simulation was performed using the two-dimensional full fluid equations of motion. We find that the system starting from a conduction state first experiences a linear stage with independently counterpropagating wave (CPW) packets and then develops a modulated traveling wave (MTW) and a traveling wave (TW) containing transient sink and source defects. It then ultimately evolves into a TW with a stable sink defect similar to those observed in experiments. For our parameters, the system evolves into the nonlinear regime as the lateral concentration profile becomes a trapezoidal, strongly non-harmonic shape in the localized regions. Comparisons with other calculations and experiments are presented.
- 理論物理学刊行会の論文
- 1997-09-25
著者
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Harada Yoshifumi
Department of Applied Physics, Faculty of Engineering, Fukui University
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Harada Yoshifumi
Department Of Applied Physics Faculty Of Engineering Fukui University
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Harada Y
Department Of Applied Physics Faculty Of Engineering Fukui University
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YAHATA Hideo
Department of Materials Science, Faculty of Science, Hiroshima University
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NING Lizhong
Department of Applied Physics,Faculty of lingsneerzng Fukri University
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Yahata Hideo
Department Of Materials Science Faculty Of Science
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Ning L
Institute Of Hydraulic Engineering Xian University Of Technology:department Of Engineering Nitto Co.
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Yahata H
Hiroshima Univ. Hiroshima
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NNG Lizhong
Department of Applied Physics, Faculty of Engineering Fukui University
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YAHATA Hideo
Department of Materials Science Faculty of Science Hiroshima Universit
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NING Lizhong
Institute of Hydraulic Engineering, Xian University of Technology:Department of Engineering, NITTO CO.LTD
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NING Lizhong
Department of Applied Physics, Faculty of Engineering Fukui University
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HARADA Yoshifumi
Department of Applied Physics,Faculty of lingsneerzng Fukri University
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YAHATA Hideo
Department of Materials Science ,Faculty of Science,Hiroshima University
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