2- Calculate the total cone angle, fuel mass flow rate, penetration distance and
time for a diesel fuel injector with the following data: eight-hole nozzle, each hole
0.15 mm diameter, injection duration 0.002 s, pressure drop across the nozzle is
350 bar, air density 30 kg/m3, fuel density 850 kg/m3.
Diesel Spray Dynamics:
The penetration distance $L = 2.95 \left[ d_o \left( \frac{\Delta p}{\rho_a} \right)^{1/2} \right]^{1/2}$
time $t_b = 28.65 \left( \frac{\rho_l}{\rho_a} \right)^{1/2} \left[ \frac{d_o}{\left( \frac{\Delta p}{\rho_l} \right)^{1/2}} \right]$
Total Cone angle $\theta = 0.05 \left( \frac{\Delta p}{\rho_a v^2} d_o \right)^{1/4}$
