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软件简介： <trans data-src="An efficient finite element procedure for analyzing three-phase porous media based on the relaxed Picard method. ">基于松弛Picard方法的三相多孔介质有限元分析方法。</trans><trans data-src="Effective simulation of the solid-liquid-gas coupling effect in unsaturated porous media is of great significance in many diverse areas. ">有效地模拟非饱和多孔介质中的固液气耦合效应在许多领域具有重要意义。</trans><trans data-src="Because of the strongly nonlinear characteristics of the fully coupled formulations for the three-phase porous media, an effective numerical solution scheme, such as the finite element method with an efficient iterative algorithm, has to be employed. ">由于三相多孔介质全耦合方程的强非线性特性，必须采用有效的数值求解方法，如有限元法和有效的迭代算法。</trans><trans data-src="In this paper, an efficient finite element procedure based on the adaptive relaxed Picard method is developed for analyzing the coupled solid-liquid-gas interactions in porous media. ">本文基于自适应松弛Picard方法，提出了一种分析多孔介质中固液气耦合作用的有效有限元方法。</trans><trans data-src="The coupled model and the finite element analysis procedure are implemented into a computer code PorousH2M, and the proposed procedure is validated through comparing the numerical simulations with the experimental benchmarks. ">对模型进行了验证，并将模拟结果与计算机程序进行了比较。</trans><trans data-src="It is shown that the adaptive relaxed Picard method has salient advantage over the traditional one with respect to both the efficiency and the robustness, especially for the case of relatively large time step sizes. ">结果表明，自适应松弛Picard方法在效率和鲁棒性方面都优于传统方法，特别是在时间步长较大的情况下。</trans><trans data-src="Compared with the Newton-Raphson scheme, the Picard method successfully avoids the unphysical `spurious unloading’ phenomenon under the plastic deformation condition, although the latter shows a better convergence rate. ">与Newton-Raphson格式相比，Picard方法成功地避免了塑性变形条件下的非物理“假卸载”现象，尽管后者具有更好的收敛速度。</trans><trans data-src="The proposed procedure provides an important reference for analyzing the fully coupled problems related to the multi-phase, multi-field coupling in porous media.">该方法为分析多孔介质中多相、多场耦合问题提供了重要的参考。</trans>

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评论： <trans data-src="Update software PorousH2M: http://swmath.org/software/18328">更新软件PorousH2M:http://swmath.org/software/18328</trans>

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