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Modelling of Phase Change Heat Transfer System for Micro-channel and Chaos Simulation |
| LUO Xiao-Ping1;CUI Z. F.2 |
| 1College of Mechanical and Automobile Engineering, South China University of Technology, Guangzhou 5106402Engineering Science Department, University of Oxford, Oxford, OX1 3PJ, UK |
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| Cite this article: |
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LUO Xiao-Ping, CUI Z. F. 2008 Chin. Phys. Lett. 25 2111-2114 |
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Abstract The dynamic properties for the micro-channel phase change heat transfer system are studied by theoretical method combined with experiment. Liquid--vapour interface dynamic systems are obtained by introducing disjoining pressure produced by three phase molecular interactions and Lie algebra
analysis. Experiments for 0.6mm×2mm rectangular micro-channel are carried out to obtain the pressure time serials. Power spectrum density analysis for these serials shows that the system is in chaotic state if the frequency is above 7.39Hz. The result indicates that the high heat transfer performance of the micro channel phase change system may relate to the characteristics
of chaos. The chaos attractor is drawn by the simulation of the obtained differential dynamic system under the conditions of our experiment.
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| Keywords:
44.35.+c
44.05.+e
47.27.Ed
44.15.+a
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Received: 04 February 2008
Published: 31 May 2008
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| PACS: |
44.35.+c
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(Heat flow in multiphase systems)
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44.05.+e
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(Analytical and numerical techniques)
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47.27.ed
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(Dynamical systems approaches)
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44.15.+a
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(Channel and internal heat flow)
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[8] Schrage R W 1953 A Theoretical Study of InterphaseMass Transfer (New York: Columbia University Press)
[9] Wiggins S 1988 Global Bifurcations and Chaos,Analytical Methods (New York: Springer) |
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