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本文介绍了饱和态超流氦(HeⅡ)在特定的实验装置内稳态与瞬态某些传热特性的实验研究。由稳态传热结果用无因次分析法获得在温度2K附近,K_(G_M)=11.6。由瞬态传热结果拟合出从NbTi/Cu合金到液氦Ⅱ之间换热的总卡皮查热导方程式为。从稳态与瞬态传热实验结果的比较,瞬态的最大热流密度比稳态大约高五倍。
In this paper, some experimental studies on the steady-state and transient heat transfer characteristics of saturated superfluid helium (HeⅡ) in a specific experimental setup are introduced. From the steady-state heat transfer results obtained by non-dimensional analysis at a temperature near 2K, K_ (G_M) = 11.6. From the transient heat transfer results fitted from the NbTi / Cu alloy to liquid helium Ⅱ heat exchange between the total Capillary thermal conductivity equation. From the steady-state and transient heat transfer experimental results, the transient maximum heat flux density is about five times higher than steady state.