论文标题

放电港 - 哈米尔顿港系统:Navier-Stokes-fourier Fluid

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

论文作者

Lohmayer, Markus, Leyendecker, Sigrid

论文摘要

Exergetic Port-Hamiltony Systems建模语言结合了一种图形语法,该语法灵感来自债券图形,类似于仿制药形式主义的哈米尔顿港语义。该语法实现了总参数模型的组成模式的模块化和分层规范。语义反映了热力学作为结构特性的第一和第二定律。因此,可以用人类和计算机访问的形式语言来表达多物质热力学系统的互连和层次定义的模型。我们讨论了固定空间域上Navier-Stokes-fouried流体的组成模型,作为开放分布参数系统的一个示例。在最高级别,该系统包括五个子系统,这些子系统对动能存储,内部能量存储,热传导,散装粘度和剪切粘度进行了建模。

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.

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