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浙江大学学报(理学版)  2022, Vol. 49 Issue (3): 300-307    DOI: 10.3785/j.issn.1008-9497.2022.03.006
数学与计算机科学     
一类双扩散对流方程组的解对Lewis系数的连续依赖性研究
王泽()
广东金融学院 互联网金融与信息工程学院,广东 广州 510521
Continuous dependence of solutions of a class of double diffusion convection equations on Lewis coefficients
Ze WANG()
School of Internet Finance and Information Engineering,Guangdong University of Finance,Guangzhou 510521,China
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摘要:

研究了有界区域内多孔介质中一类双扩散扰动模型的解的结构稳定性。首先得到了一些有用的先验估计,然后利用这些先验估计构建了解的差所满足的一阶微分不等式,最后通过积分该微分不等式,建立了解对Lewis系数Le的连续依赖性结果。该结果表明,用双扩散扰动模型描述多孔介质中的流体流动是准确的。

关键词: 双扩散对流方程组连续依赖性Rayleigh系数Lewis系数    
Abstract:

This paper studies the structural stability for solutions of a double diffusion perturbation model in porous medium in a bounded domain. We firstly obtain some useful a priori estimates. Using these a priori estimates, we then formulate a first order differential inequality that the solution satisfies. Finally, by integrating the inequality, we get the result of continuous dependence for the solutions on the Lewis coefficient Le. This result shows that it is accurate for the double diffusion perturbation model to be used to describe the flow in porous media.

Key words: double diffusion convection equations    continuous dependence    Rayleigh coefficient    Lewis coefficient
收稿日期: 2020-06-22 出版日期: 2022-05-24
CLC:  O 175  
基金资助: 广州市科技计划项目(201707010126)
作者简介: 王泽(1969—),ORCID:https://orcid.org/0000-0001-5208-5059,男,硕士,副教授,主要从事数据挖掘、人工智能、偏微分方程等研究,E-mail:20-030@gduf.edu.cn.
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引用本文:

王泽. 一类双扩散对流方程组的解对Lewis系数的连续依赖性研究[J]. 浙江大学学报(理学版), 2022, 49(3): 300-307.

Ze WANG. Continuous dependence of solutions of a class of double diffusion convection equations on Lewis coefficients. Journal of Zhejiang University (Science Edition), 2022, 49(3): 300-307.

链接本文:

https://www.zjujournals.com/sci/CN/10.3785/j.issn.1008-9497.2022.03.006        https://www.zjujournals.com/sci/CN/Y2022/V49/I3/300

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