The focus of this project has been towards building a computational fluid dynamics model in order to study the confined co-flowing jet formed at low Reynolds numbers in a 2D flow focusing device. When two immiscible fluids flow in a flow focusing device, either monodisperse droplets or parallel flows are obtained depending upon the flow rate of the aqueous phase and oil phase. In this project, Flow-3D v9.3.2 has been used to build a validated computational fluid dynamics model to simulate the behavior of steady laminar confined coflowing jet at low Reynolds number in a 2D flow focusing device for different flow rates of the core and outer fluids. Focusing on situations where the inner fluid is less viscous than the outer one, the effect of various parameters including the inlet Reynolds number, velocity ratio of the core fluid to the external fluid is studied and a comparison has been made between the theoretical solutions and fully developed velocity profiles obtained from the CFD model.
Detailed analysis and results can be found here.
