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首页> 外文期刊>Journal of thermal stresses >High-order approximations of three-phase-lag heat conduction model: Some qualitative results
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High-order approximations of three-phase-lag heat conduction model: Some qualitative results

机译:三相滞后热传导模型的高阶近似:一些定性结果

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This article deals with some high-order approximations of the three-phase-lag heat transfer model aiming, at first, to identify the restrictions that make them well-posed consistence. Consequently, a first result about the uniqueness and continuous dependence of the solutions with respect to the given initial data and to the supply term is established for the related initial boundary value problems. Subsequently, to provide a more comprehensive analysis of the model, some further spatial decay results are established, this time conveniently relaxing the hypotheses about the delay times and the thermal conductivities. More precisely, a theorem of influence domain is proved for the wave propagating models and an exponential decaying estimate of Saint-Venant type is established for the diffusive models.
机译:本文讨论了三相滞后热传递模型的一些高阶近似,其目的是首先确定使它们具有良好的一致性的限制。因此,针对相关的初始边值问题,建立了关于解对给定初始数据和供给项的唯一性和连续依赖性的第一结果。随后,为了提供对该模型的更全面的分析,还建立了一些其他的空间衰减结果,这一次可以方便地放宽有关延迟时间和热导率的假设。更确切地说,证明了波传播模型的影响域定理,并为扩散模型建立了Saint-Venant类型的指数衰减估计。

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