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Model reductions and identifications for multiphase phenomena

机译:多相现象的模型简化和识别

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In the paper the question of applicability of the boundary function method for asymptotical analysis of three-phase surface reactions is addressed. In a stirred tank a chemical reaction takes place on a catalyst surface in addition to a number of molar exchanges between gas, liquid, and solid phases. These effects are all interdependent. A mathematical model of the reactor in terms of coupled ordinary and partial differential equations is given by knowledge of mass balances and empirical laws governing the processes in question. Limiting cases of this general model are derived for particular extreme parameters regimes using the boundary function method. We also discuss how the simplified models obtained by asymptotic analysis can be used to identify the key controlling factors of the process.
机译:在本文中,提出了边界函数方法在三相表面反应的渐近分析中的适用性问题。在搅拌釜中,除了气相,液相和固相之间的许多摩尔交换以外,化学反应还在催化剂表面上发生。这些影响都是相互依赖的。通过耦合的质量平衡知识和支配所讨论过程的经验定律,给出了基于耦合常微分方程和偏微分方程的反应堆数学模型。该通用模型的极限情况是使用边界函数方法针对特定的极端参数范围导出的。我们还将讨论通过渐近分析获得的简化模型如何用于识别过程的关键控制因素。

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