Non-linear heat convection and its Obukhov's model |
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| Authors: | J Kracík V Něnička |
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| Institution: | 1. Faculty of Electrical Engineering, Czech Technical University, Suchbátarova 2, 166 27, Praha 6, Czechoslovakia
2. Institute of Electrical Engineering, Czechoslovak Academy of Sciences, Dolej?kova 5, 182 00, Praha 8, Czechoslovakia
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| Abstract: | The paper deals with a non-linear model of the convective heat exchange. By transforming Obukhov's model equations it is shown that it is possible to replace the time evolution of a dynamic system by the system of two coupled non-linear oscillators with exciting forces. This exciting force is a linear function of the temperature deviation from the linear course. From the presented results it is clear that there exist coherent regimes which are characterized by subharmonic frequencies of different orders. |
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