Exergetic Port-Hamiltonian Systems: Navier-Stokes-Fourier Fluid

被引：0

作者：

Lohmayer, Markus ^{[1
]}

Leyendecker, Sigrid ^{[1
]}

机构：

[1] Friedrich Alexander Univ Nurnberg, Erlangen, Germany

来源：

IFAC PAPERSONLINE | 2022年 / 55卷 / 18期

关键词：

port-Hamiltonian systems; geometric fluid mechanics; thermodynamics; exergy; compositionality; bond graphs; GENERIC; exterior calculus;

D O I：

10.1016/j.ifacol.2022.08.033

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The Exergetic Port-Hamiltonian Systems modeling language combines a graphical syntax inspired by bond graphs with a port-Hamiltonian semantics akin to the GENERIC formalism. The syntax enables the modular and hierarchical specification of the composition pattern of lumped and distributed-parameter models. The semantics reflects the first and second law of thermodynamics as structural properties. Interconnected and hierarchically defined models of multiphysical thermodynamic systems can thus be expressed in a formal language accessible to humans and computers alike. We discuss a composed model of the Navier-Stokes-Fourier fluid on a fixed spatial domain as an example of an open distributed-parameter system. At the top level, the system comprises five subsystems which model kinetic energy storage, internal energy storage, thermal conduction, bulk viscosity, and shear viscosity. Copyright (C) 2022 The Authors.

引用

页码：74 / 80

页数：7

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