# COMPLEX SYSTEMS

## MAIN FEATURES

- Specification of fluid properties (density, specific weight, dynamic viscosity, compressibility)
- Representation of transport and distribution systems (branched configuration, looped configuration, branched and looped configuration)
- Definition of network topology through an unlimited number of nodes (reservoir, storage tank, surge tank, junction, etc.) and links (pipe, valve, pump, turbine, etc.)
- Definition of characteristics for each node (3D coordinates, geometry, constraints, initial conditions, working conditions, etc.)
- Definition of characteristics for each link (geometry, friction losses, characteristic curves, operational laws, control laws, etc.)
- Solution of algebraic and differential equations through the MOC method and an iterative procedure
- Choice between DDA (Demand Driven Analysis) and PDA (Pressure Driven Analysis)
- Computation of flows (velocities, volume flow rates)
- Computation of heads (gravity, pressure, energy)
- Computation of convergence tests (mass balance, number of iterations)
- Analysis of steady state conditions
- Analysis of unsteady state conditions
- Comparison of results with available field data
- Visualisation of results
- Suitable for designing and testing

## OPTIONS FOR IO OPERATIONS

- Microsoft Excel Spreadsheet Files (xlsx)

## OPTIONS FOR GRAPHICS

- Standard Image Formats (jpeg, tiff)
- Portable Document Format (pdf)

## TEST CASES

Figure 1, Figure 2, Figure 3, Figure 4 show some simulation results referring to a typical hydro power plant scheme (1 reservoir, 1 surge tank, 3 penstocks, 3 turbines).

Figure 1. 3D layout and head.

Figure 2. Operational conditions (Y-Axis) versus time (X-Axis).

Figure 3. Heads (Y-Axis) versus time (X-Axis).

Figure 4. Volume flow rates (Y-Axis) versus time (X-Axis).

## DELIVERABLES

User's Manual | ||

Hydro Power Plant | AVI | |

Pumping Station | AVI | |

Water Distribution Network | AVI | |

Highway Tunnel Water Supply 1 | AVI | |

Highway Tunnel Water Supply 2 | AVI |