Splitter simulation

1 inlet -> N outlets

Governing equations

The exact equations the solver works for a splitter — the same math shown in the app's "Theory" panel, not a black box.

F_j = \phi_j\, F_{in},\qquad \sum_j \phi_j = 1

z_{i,j} = z_{i,in},\quad T_j = T_{in},\quad P_j = P_{in}

$F$: molar flow [mol/s]
$\phi$: split fraction to outlet j — the only thing a splitter sets; the branches are identical in everything else
$z$: mole fraction — unchanged across a splitter (it divides flow, it never separates)
$T$: temperature [K] — identical on every branch
$P$: pressure [Pa] — same on each branch

split_fractions [list of fractions summing to 1.0, one per outlet]