Influence of contact angle boundary condition on CFD simulation of T-junction

Author (s): Arias, S.; Montlaur, A.
Journal: Microgravity Science and Technology

Volume: 30 (4)
Pages: 435 – 443
Date: 2018

In this work, we study the influence of the contact angle boundary condition on 3D CFD simulations of the bubble generation process occurring in a capillary T-junction. Numerical simulations have been performed with the commercial Computational Fluid Dynamics solver ANSYS Fluent v15.0.7. Experimental results serve as a reference to validate numerical results for four independent parameters: the bubble generation frequency, volume, velocity and length. CFD simulations accurately reproduce experimental results both from qualitative and quantitative points of view. Numerical results are very sensitive to the gas-liquid-wall contact angle boundary conditions, confirming that this is a fundamental parameter to obtain accurate CFD results for simulations of this kind of problems.



author="Arias, S.
and Montlaur, A.",
title="Influence of Contact Angle Boundary Condition on CFD Simulation of T-Junction",
journal="Microgravity Science and Technology",
Volume = {30},
Number = {4},
Pages = {435-443},