S. Tkachenko, Olha Vlasenko, Nataliia Rezydent, D. Stepanov, N. Stepanova
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引用次数: 0
摘要
对系统“环境I -体II”中的非稳态换热进行了实验研究。在由流体和薄壁金属包壳组成的体II中,出现了规则热模态的特征,即体II的冷却(加热)速率- m = const;水(环境I)与体II之间的换热系数基本稳定α1 =常数;体内温度分布不均匀系数i ψ = const。这一新概念的传热规律II计划应用于进一步发展的实验计算方法,以预测在有限的热物理和流变性质的复合流体介质中的换热强度。
Cooling and heating of the fluid in the cylindrical volume
Experimental studies of the non-stationary heat exchange in the system «environment I – body II» have been carried out. It is established that in the body II, which consists of the fluid and thin-walled metal envelope, the characteristic features of the regular thermal mode occur, i.e., cooling (heating) rate of the body II- m = const; heat transfer coefficient between the water (environment I) and body II is practically stable α1 = const; uneven temperatures distribution coefficient in the body II ψ = const. This new notion of the heat transfer regularities in the body II is planned to apply for further development of the experimental-calculation method for the forecasting of the heat exchange intensity in the compound fluid media with limited information regarding thermophysical and rheological properties.