Hi ho,

I'm modelling a hydraulic network with incompressible water (nevertheless variable density due to temperature and salt content). The attached paper plus the book
"Anwendung objektorientierter Simulationssprachen zur Modellierung von Kraftwerkskomponenten" written by Dipl.-Ing. Georg Mühlthaler (Hamburg), pubslished in the series "Fortschritt -Berichte VDI, Reihe 6, Energietechnik, Nr. 450", ISBN 3-18-345006-2 are my most precious sources of ideas. In particular in the second one, the author is speaking of RESISTORS and CAPACITORS, which should be positioned in alternating order.
Did anyone of you works with these concepts and can tell me some of his/her experience?

I'm especially interested in the following questions which are not clearly answered in that mentioned book:
+ Why not connect two resistors directly together?
+ Concerning incompressible media, is it really necessary and the only possibility to define artificial compressibility by ficticious expansion-devices?
+ Why do I need the compressibility of my media? Huge derivatives with respect to density? What about making all pressures equal that are connected to a volume of kind capacitor? For resistors I take deltaP for mass flow calculation...


Thanks,
Hannes