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SIMULATION: FLUIDS
The science that governs the movement of a fluid and the forces that produce it is the mechanics of fluids. The set of general equations that mould the behaviour is called Navier-Stokes:
- Continuity equation
- Amount of movement equation
- Energy equation
The physical and variable properties that are studied with this type of analysis are: speed, temperature, pressure, enthalpy, viscosity, convection coefficient, aerodynamic coefficient, working systems (laminar - turbulent).
In many cases it is and ambitious challenge obtaining an exact solution to the problem of fluids. Given the complexity of these systems, the simulation of fluids by finite elements (CFD) is presented as an able tool which, in the majority of situations, allows the determination of an approximate solution.
The group has carried out the calculation of fluids of diverse types; some are as follows:
- Simulation of climatisation units.
- The obtaining of aerodynamic coefficients for different given geometries, calculation of singularities in piping and valves.
- Simulation of hot forming and forging (with refrigeration circuits).
- The obtaining of mechanical requirements of a solid after a flow of fluid.
The following figure shows a forging matrix with a refrigerating circuit:
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