TY - JFULL AU - P. Adibi and M. R. Ansari and S. Jafari and B. Habibpour and E. Salimi PY - 2014/2/ TI - Slug Initiation Evaluation in Long Horizontal Channels Experimentally T2 - International Journal of Mechanical and Mechatronics Engineering SP - 64 EP - 71 VL - 8 SN - 1307-6892 UR - https://publications.waset.org/pdf/9997196 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 85, 2014 N2 - In this paper, the effect of gas and liquid superficial inlet velocities and for the first time the effect of liquid holdup on slug initiation position are studied experimentally. Empirical correlations are also presented based on the obtained results. The tests are conducted for three liquid holdups in a long horizontal channel with dimensions of 5cm10cm and 36m length. Usl and Usg rated as to 0.11m/s to 0.56m/s and 1.88m/s to 13m/s, respectively. The obtained results show that as αl=0.25, slug initiation position is increasing monotonically with Usl and Usg. During αl=0.50, slug initiation position is almost constant. For αl=0.75, slug initiation position is decreasing monotonically with Usl and Usg. In the case of equal void fraction of phases, generated slugs are weakly (low pressure). However, for the unequal void fraction of phases strong slugs (high pressure) are formed. ER -