Specific flow at transition point with two inflows

Calculates the specific flow departing from a transition point with two incoming flows

Reference

Hurley, M.J., et al., 2016. SFPE Handbook of Fire Protection Engineering. 5th ed. Springer.

Equations

F_{s(out)} = \frac{F_{s(in1)} \cdot W_{e(in1)} + F_{s(in2)} \cdot W_{e(in2)}}{W_{e(out)}}

Specific flow of first incoming stream ( F_{s(in1)} ) — persons/s/m

Effective width of first incoming stream ( W_{e(in1)} ) — m

Specific flow of second incoming stream ( F_{s(in2)} ) — persons/s/m

Effective width of second incoming stream ( W_{e(in2)} ) — m

Effective width after transition ( W_{e(out)} ) — m