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Oscillatory and Chaotic Buoyant-Thermocapillary Convection in the Large-Scale Liquid Bridge 被引量:1

Oscillatory and Chaotic Buoyant-Thermocapillary Convection in the Large-Scale Liquid Bridge
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摘要 To cooperate with Chinese TG-2 space experiment project, the transition process from steady to regular oscillatory flow, and finally to chaos is experimentally studied in buoyant-thermocapillary convection. The onset of oscillation and further transitional convective behavior are detected by measuring the temperature in large-scale liquid bridge of 2eSt silicone oil To identify the various dynamical regimes, the Fourier transform and fractal theory are used to reveal the frequency and amplitude characteristics of the flow motion. The experimental results indicate the co-existence of quasi-periodic and the Feigenbaum bifurcation in chaos. To cooperate with Chinese TG-2 space experiment project, the transition process from steady to regular oscillatory flow, and finally to chaos is experimentally studied in buoyant-thermocapillary convection. The onset of oscillation and further transitional convective behavior are detected by measuring the temperature in large-scale liquid bridge of 2eSt silicone oil To identify the various dynamical regimes, the Fourier transform and fractal theory are used to reveal the frequency and amplitude characteristics of the flow motion. The experimental results indicate the co-existence of quasi-periodic and the Feigenbaum bifurcation in chaos.
出处 《Chinese Physics Letters》 SCIE CAS CSCD 2017年第7期138-141,共4页 中国物理快报(英文版)
基金 Supported by the China Manned Space Engineering Program(TG-2) the Strategic Priority Research Program on Space Science of Chinese Academy of Sciences:SJ-10 Recoverable Scientific Experiment Satellite under Grant Nos XDA04020405 and XDA04020202-05 the National Natural Science Foundation of China under Grant No11372328
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