.StreamConnectors.Components.DynamicPipe

Information

This is probably the simplest model of a dynamic heated/cooled pipe.

Governing equations

The equations "on paper" are:

m_in = m_out

p_in - p_out = deltaP=K^.m_in|m_in|

dU/dt = m_{out^.hout - min^.hin + Q}

Representing the conservation of mass, momentum and energy where

U = m^.u is the internal energy

m is the mass of the fluid inside the pipe

u is the specific internal energy defined as c_{p^.T or h - p/rho}

Assumptions

• The fluid is incompressible (constant density) and thus the mass balance is static.
• The specific enthalpy of the fluid leaving the pipe is defined without considering the fluid velocity term.