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首页> 外文会议>International Conference on Computational Science - ICCS 2002 Pt.1, Apr 21-24, 2002, Amsterdam, the Netherlands >An Accurate and Efficient Frontal Solver for Fully-Coupled Hygro-Thermo-Mechanical Problems
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An Accurate and Efficient Frontal Solver for Fully-Coupled Hygro-Thermo-Mechanical Problems

机译：完全有效的湿热力学问题的精确有效的正面求解器

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摘要

Solving fully-coupled non-linear hygro-thermo-mechanical problems relative to the behavior of concrete at high temperatures is nowadays a very interesting and challenging computational problem. These models require an extensive use of computational resources, such as main memory and computational time, due to the great number of variables and the numerical characteristics of the coefficients of the linear systems involved. In this paper a number of different variants of a frontal solver used within HITE-COSP, an application developed within the BRITE Euram III "HITECO" EU project, to solve multiphase porous media problems, are presented, evaluated and compared with respect to their numerical accuracy and performance. The final result of this activity is a new solver which is both much faster and more accurate than the original one. Specifically, the code runs over 5 times faster and numerical errors are reduced of up to three order of magnitude.
机译：如今，解决相对于混凝土在高温下的行为的全耦合非线性湿热力学问题是一个非常有趣且具有挑战性的计算问题。由于大量变量和所涉及线性系统系数的数值特性，这些模型需要大量使用计算资源，例如主存储器和计算时间。本文介绍，评估和比较了在HITE-COSP（BRITE Euram III“ HITECO” EU项目）中开发的用于解决多相多孔介质问题的应用程序HITE-COSP中使用的正面求解器的许多不同变体。准确性和性能。该活动的最终结果是一个新的求解器，它比原始求解器更快，更准确。具体来说，代码的运行速度提高了5倍，数字错误减少了多达三个数量级。

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