生物质材料在秒量级脉冲激光加热下的导热特性研究
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TK124

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国家重点基础研究发展规划资助项目(G200026305),国家自然科学基金重点资助项目(58736130),中国科学院"九五"基础性研究重大项目(KJ9


Study on heat conduction characteristics of biologic materials under second-time laser beam irradiation
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    摘要:

    通过系统的实验,对常温下生物质材料在秒量级脉冲加热下的导热特性进行了研究,并且针对本实验的条件分别进行了抛物线型和双曲线型两种导热模型的数值模拟,结果发现,傅里叶模型的计算结果和实验结果非常吻合,而双曲线模型的计算结果和实验结果相差很大,这说明在本实验的条件下,在所用的生物质材料中没有发现非傅里叶现象,同时也说明某些文献所述各种生物质材料的热松弛时间为秒量级的结论还有待商榷。

    Abstract:

    Through experiments in different cases, the heat conduction of biologic materials in normal temperature under second-time laser beam irradiation is investigated. Compared these experiment results with numerical simulation based on different models, we find the experimental results have a reasonable agreement with the calculated results based on Fourier's Law, but greatly differ from the results of numerical simulation based on Hyperbolic Model. It shows that there is no Non-Fourier effect being found in this kind of biologic material in experiments. On the other hand these experiments show the assertion that the relaxation times of all biologic materials are more than 1 second should be checked more carefully.

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崔晓鸣 刘登瀛 等.生物质材料在秒量级脉冲激光加热下的导热特性研究[J].上海理工大学学报,2001,(3):201-204,208.

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