$N$ parallel smooth arcs, each with constant radius $R$. The pressure loss coefficient is computed using the following correlation by VDI based on the Reynolds'number $\text{Re}$:
It is assumed, that no significant heat transfer takes plance; hence: $$Nu=0$$
Parameter | Symbol | Unit | Description |
Radius | \(R\) | m | Radius of the arc |
Count | \(N\) | none | Number of parallel arcs |