Boundary conditions can be used to study the resulting temperature distribution along the sleeve. Three different options are provided to define boundary conditions for each element:
- Constant wall temperature $T_{wall}$: The heat flux towards the Fluid is calculated as $\dot{Q}=k\cdot(T_{wall}-T_{fluid})$, where as $k$ is the combinedheat transfer coefficient (htc) of the convective heat transfer in the fluid and the conductive heat transfer in the isolation.
- Constant wall heat flux $\dot{Q}$: The wall temperature is calculated as $T_{wall}=\dot{Q}\cdot k^{-1}+T_{fluid}$
- Adiabatic: The wall heat flux ist set to $\dot{Q}=0$ and the wall temperature is set to $T_{wall}=undef$. If this option is set, the other to boundary types are ignored. Furthermore, the htc of this element is set to $k=0$.
IMPORTANT:The boundary condistions constant call temperature and constant wall heat flux are only considered for the analysis within DuctDesigner. Within EMod, the wall temperatures are computed by the component models while the wall heat flux is a result fo the fluid's temperature, the wall temperature and the resulting htc of the duct.
