Santosh Kumar Panda
School of Mechanical Engineering, KIIT Deemed to be University, Bhubaneswar-751024, India
Basanta Kumar Rana
Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India; School of Mechanical Engineering, KIIT Deemed to be University, Bhubaneswar-751024, India
Parmod Kumar
Department of Mechanical and Industrial Engineering Indian Institute of Technology Roorkee, 247667, India; School of Engineering, Indian Institute of Technology Mandi, Mandi, Himachal Pradesh-175075, India
The main objectives of this article tend to achieve a better understanding of fluid flow and air entrainment around a partially submerged horizontal rotating solid roller across the gas-liquid interface. This study takes into account a wide range of submergence ratios (S/D=0.25 to 1) and three distinct fluid pairs (air-water, air-lubricating oil, and air-transformer oil). For this analysis, we have employed Gerris, an open-source code that anticipates the interface configuration using the volume of fluid (VOF) approach. The transient structure of the horizontal stratified interface is to be assessed in both advancing and receding ends because of the clockwise rotation of the solid horizontal roller. For a wide range of roller rotations, the current study deals with an extensive numerical analysis to anticipate the encapsulation of liquid film near the roller and entrainment of gaseous cusp-shaped filament in the advancing end.