.ThermofluidStream.Undirected.Processes.StaticHead .ThermofluidStream.Undirected.Processes.StaticHeadImplementation of static head in a pipe. Bidirectional implementation.
To specify the acceleration vector, please use the AccelerationBoundary component.
Default is pure graviation in the negative z-direction.
Energy is moved between potential energy in an acceleration field and internal energy (pressure).
The main assumption is that the density is constant for the pressure change along the pipe. That would be the case for non-compressible fluids and many gases at low Mach numbers. For more insight in this look into the difference between the simplified and generalised forms of the Bernoulli equation.
Note that it is only the position difference that influence the pressure difference, not the absolute positions. If the inlet pressure is not sufficient to overcome the acceleration field between the pipe ends the static head is less than the length given by the position difference in the acceleration direction.
Beware: This is a new addition to the library. It may be subject to design reconsiderations in future versions
Author:
Ingela Lind, M Sc, Ph D, Technical Fellow, Simulation and Thermal
Analysis, Vehicle Systems, SAAB Aerosystems, 2024