Drop Formation At A T-Junction With Dilute Xanthan Gum Solutions As The Dispersed Phase

摘要

Drops were formed at a T-junction with dilute xanthan gum(XG) solutions of 0.01, 0.025 and 0.05 wt% as the dispersedphase fluid. The continuous phase was a Newtonian fluid,canola oil, with a viscosity of 0.065 Pa.s. The drop diameterwas found to decrease with increasing continuous phase flowrate. A more structured approach for delineating the differentdrop formation employing the change in drop diameter with thecontinuous phase Capillary number (Cac) was found to workwell with the data obtained as well as with published data. Theresults showed that a higher viscosity for the dispersed phasefluid results in a smaller value of Cac for the transition fromthe dripping to jetting drop formation regime but did not have astrong influence on the transition from the squeezing to drippingdrop formation regime.