A Scalable port-Hamiltonian Model for Incompressible Fluids in Irregular Geometries

被引:1
|
作者
Mora, Luis A. [1 ]
Ramirez, Hector [1 ]
Yuz, Juan, I [1 ]
Le Gorrec, Yann [2 ]
机构
[1] Univ Tecn Federico Santa Maria, Dept Elect Engn, Av Espana 1680, Valparaiso, Chile
[2] Univ Bourgogne Franche Comte, FEMTO ST, CNRS, 24 Rue Savary, F-2500 Besancon, France
来源
IFAC PAPERSONLINE | 2019年 / 52卷 / 02期
关键词
Port-Hamiltonian systems; PDE; approximation of PDEs; computational methods; FORMULATION; SYSTEMS; FLOW;
D O I
10.1016/j.ifacol.2019.08.018
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 behavior of a fluid in pipes with irregular geometries is studied. Departing from the partial differential equations that describe mass and momentum balances a scalable lumped-parameter model is proposed. To this end the framework of port-Hamiltonian systems is instrumental to derive a modular system which upon interconnection describes segments with different cross sections and dissipation effects. In order to perform the interconnection between different segments the incompressibility hypothesis is relaxed in some infinitesimal section to admit density variations and energy transference between segments. Numerical simulations are performed in order to illustrate the model. (C) 2019, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.
引用
收藏
页码:102 / 107
页数:6
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