TY - JOUR
TI - Drop formation in cross-junction micro-channel, using lattice Boltzmann method
AU - Fallah Kayvan
AU - Rahni Moahammad Taeibi
AU - Mohammadzadeh Alireza
AU - Najafi Mohammad
JN - Thermal Science
PY - 2018
VL - 22
IS - 2
SP - 909
EP - 919
PT - Article
AB - Drop formation in cross-junction micochannels is numerically studied using  the lattice Boltzmann method with pseudo-potential model. To verify the  simulation, the results are compared to previous numerical and experimental  data. Furthermore, the effects of capillary number, flow rate ratio, contact  angle and viscosity ratio on the flow patterns, drop length and interval  between drops are investigated and highlighted. The results show that the  drop forming process has different regimes, namely, jetting, drop and  squeezing regimes. Also, it is shown that increasing in the flow rate ratio  in the squeezing regime causes increment in drop length and decrement in  drops interval distance. On the other hand, the drops length and the interval  between the generated drops increase as contact angle increases. Also, the  drop length and distance between drops is solely affected by viscosity ratio.