Research On Fluid Network Modeling Methods

In the thermal power plant,lots of equipment and pipes with complex fluids form a complicated fluid network.Establishing the model of fluid network plays an important role in the simulation of this system.In this paper,the complex fluid network with a variety of fluids has been analyzed and modeled.Against the compression characteristics,two methods are used to build the fluids model based on experimental and mechanism modeling.For the incompressible fluid,the theory of signal flow graph is used to establish the fluid network model from the macroscopic point of view.The structural model of water supply system is established by analyzing the mechanism of the pressure and flow in different nodes.According to the study of mechanism of equipment in the water supply system,the mathematical equation is constructed.Then the identification algorithm had been used to solve the parameters of the equipment.Finally the mathematical model is established.Against the compressible fluid,the theory of power bond graphs has been used to model the wink and smoke system in thermal power units.Based on the principle of energy conservation and the analysis of the transfer and transformation of energy,graph theory is used to model the wind and smoke system.Using MATLAB-SIMULINK simulation experimental platform,the model could be build and verification...