瞬态传热实验中的径向传导效应

IF 1.4 4区工程技术 Q2 ENGINEERING, AEROSPACE

Aeronautical Journal Pub Date : 1997-05-01 DOI:10.1017/S0001924000066380

D R Buttsworth, T V Jones

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引用次数: 70

摘要

对流换热数据通常是从瞬态表面温度测量中获得的。薄膜电阻计，热电偶和热致变色液晶，在各种情况下用于测量表面温度历史。假设存在均匀半无限平板条件，则可以将瞬态表面热通量表示为瞬态表面温度的解析函数(1)。可以使用各种方法来解释多层基底和有限厚度基底效应的存在(Schultz和Jones(1);Doorly and Oldfield(2);Guo等(3))，然而，表面曲率的影响通常被忽略。

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Radial conduction effects in transient heat transfer experiments

Convective heat transfer data is frequently obtained from transient surface temperature measurements. Thin film resistance gauges, thermocouples, and thermochromic liquid crystals, are used in various situations to measure the surface temperature history. By assuming that uniform semi-infinite flat plate conditions apply, it is possible to express the instantaneous surface heat flux as an analytical function of the transient surface temperature(1). Various approaches can be used to account for the presence of multi-layered substrates and finite thickness substrate effects (Schultz and Jones(1); Doorly and Oldfield(2); Guo et al (3)), however, the effects of surface curvature are usually neglected.

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来源期刊

Aeronautical Journal 工程技术-工程：宇航

CiteScore

3.70

自引率

14.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The Aeronautical Journal contains original papers on all aspects of research, design and development, construction and operation of aircraft and space vehicles. Papers are therefore solicited on all aspects of research, design and development, construction and operation of aircraft and space vehicles. Papers are also welcomed which review, comprehensively, the results of recent research developments in any of the above topics.