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| Authors: | Rüdiger Franke: ABB AG, Germany |
| | Francesco Casella: Politecnico di Milano, Italy |
| | Martin Otter: DLR Institute for Robotics and Mechatronics, Germany |
| | Michael Sielemann: DLR Institute for Robotics and Mechatronics, Germany |
| | Hilding Elmqvist: Dassault Systèmes (Dynasim), Sweden |
| | Mattson Sven Erik: Dassault Systèmes (Dynasim), Sweden |
| | Olsson Hans: Dassault Systèmes (Dynasim), Sweden |
| Publication title: | Stream Connectors – An Extension of Modelica for Device-Oriented Modeling of Convective Transport Phenomena |
| Conference: | Proceedings of the 7th International Modelica Conference, Como, Italy, 20-22 September 2009 |
| Publication type: | Abstract and Fulltext |
| Issue: | 043 |
| Article No.: | 012 |
| Abstract: | Modelica 3.0 as well as other physical modeling languages have two basic variable types to describe the interaction of physical components: “Potential” (or across) variable and “flow” (or through) variable. It is shown that with these variable types it is not possible to describe in a numerically sound way bidirectional flow of matter. Other alternatives based on signal flow oriented modeling have severe restrictions how components can be connected together.
This fundamental problem is addressed in Modelica 3.1 by introducing a third type of connector variable for physical systems, called stream variable, declared with the prefix stream.
This article motivates and introduces stream variables. Examples are given for their utilization in basic fluid models. |
| Language: | English |
| Keywords: | Thermo-fluid, stream variable, convection, potential/flow variable, across/through variable |
| Year: | 2009 |
| No. of pages: | 14 |
| Pages: | 108-121 |
| ISBN: | 978-91-7393-513-5 |
| Series: | Linköping Electronic Conference Proceedings |
| ISSN (print): | 1650-3686 |
| ISSN (online): | 1650-3740 |
| File: | http://www.ep.liu.se/ecp/043/012/ecp09430078.pdf |
| Available: | 2009-12-29 |
| Publisher: | Linköping University Electronic Press, Linköpings universitet |
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REFERENCE TO THIS PAGE | Rüdiger Franke, Francesco Casella, Martin Otter, Michael Sielemann, Hilding Elmqvist, Mattson Sven Erik, Olsson Hans (2009). Stream Connectors – An Extension of Modelica for Device-Oriented Modeling of Convective Transport Phenomena, Proceedings of the 7th International Modelica Conference, Como, Italy, 20-22 September 2009 http://dx.doi.org/10.3384/ecp09430078 (accessed 5/23/2013) |
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Ph.D., Lic. Theses
