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EnginSoft Conference 2010
Proceedings CD now available
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Flowmaster
System simulation software
- Flowmaster can compute with accuracy and precision pressure, flow rate and temperature in each point of the system, by solving the pressure loss equation in function of the flow rate, together with the mass and energy conservation equations. Flowmaster can solve the wave propagation equation in transient simulations; this allows to accurately study the outbreak of water hammer phenomena in in incompressible simulations. Furthermore, Flowmaster can compute most of the internal variables of the system components.
- The one-dimensional approach requires very short simulation times (from a few seconds to a few hours); this allows to analyse different operating conditions and design configurations in a rapid and efficient manner.
- The component physical models of the proprietary library are based on the comprehensive studies carried by DSMiller on the fluid-dynamic characteristics of each component. It is always possible to characterize the components with performance data derived from the company data.
- Flowmaster allows to perform steady-state and transient simulations with compressible or incompressible fluids. Moreover, it is also possible to account for heat transfer phenomena.
- The heat transfer phenomena can be analysed considering the conductive, convective and radiative exchange of the components and it is possible to define air conditioning cycle thanks to a set of predefined components, such as compressors, condensers, evaporators, expansion valves, and capillary tubes. In this last case, Flowmaster is capable to compute the phase change of the refrigerant using the NIST Refprop 8.0 database for the characterization of the refrigerants.
- Flowmaster can deal with every type of system architecture: single pipe lines, circuits, branched plants, etc.
- The use of controllers allows to define complex logics for the control of component behaviour and to verify the functionality of the system in transient conditions. PID controllers (Proportional Integrative Derivative) allow to evaluate the system response to impulsive signals, enabling the designer to evaluate both the system stability and inertia.
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