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arXiv 1003.5290math.NAcs.NA
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Barenblatt-Biot孔隙弹性模型近似解的后验误差估计

A posteriori error estimates for approximate solutions of Barenblatt-Biot poroelastic model

University of Bergen(卑尔根大学);Bergen University College(卑尔根理工学院);V.A. Steklov Institute of Mathematics in St.-Petersburg(圣彼得堡V.A.斯捷克洛夫数学研究所);University of Iceland(冰岛大学)

J. M. Nordbotten, T. Rahman, S. I. Repin, J. Valdman

AI总结:

针对Barenblatt-Biot孔隙弹性模型,提出一种保证性的后验误差估计,该估计结合了扩散部分压力场误差和弹性部分应力(应变)误差,不含网格依赖常数,适用于任意协调近似。

摘要:

本文关注孔隙弹性理论中的Barenblatt-Biot模型。我们推导了精确解与近似解之间差异的保证性估计,该估计以组合范数表示,涵盖了模型扩散部分计算的压力场误差以及弹性部分的应力(应变)误差。估计不包含通用的(网格依赖的)常数,并且对压力和应力场的任意协调近似均有效。

英文摘要:

The paper is concerned with the Barenblatt-Biott model in the theory of poroelasticity. We derive a guaranteed estimate of the difference between exact and approximate solutions expressed in a combined norm that encompasses errors for the pressure fields computed from the diffusion part of the model and errors related to stresses (strains) of the elastic part. Estimates do not contain generic (mesh-dependent) constants and are valid for any conforming approximation of pressure and stress fields.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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