Mbanjwa, MBLand, KJJewell, LMoss, EAGledhill, Irvy MA2011-02-112011-02-112010-01Mbanjwa, MB, Land KJ, Jewell L, et al. 2010. Experimental observation of capillary instabilities of two phase flow in a microfluidic T-junction. 7th South African Conference on Computational and Applied Mechanics (SACAM10), Pretoria, 10-13 January 2010, pp 1-9978062049192http://hdl.handle.net/10204/48477th South African Conference on Computational and Applied Mechanics (SACAM10), Pretoria, 10-13 January 2010This paper discusses the experimental observation of capillary instabilities of two-phase flow in a microfluidc T-junction. These instabilities are analogous to the classical Plateau-Rayleigh instabilities. The experiments were carried out with mineral oil and water in a rectangular microchannel of 100 μm width and depth of 75 μm. The interfacial tension of the system was around 3 mN/m after addition of a surfactant in the oil phase. We report on the instabilities observed in three fluid inlet configurations in T-junctions under the same flow parameters. The inlet geometry was found to have limited influence on the behaviour of the flow while the flowrate of the water phase is considered more importantenCapillary instabilityMicrofluidic T-junctionPlateau-Rayleigh instabilitiesInterfacial tensionSACAM 2010Applied mechanicsConference PresentationMbanjwa, M., Land, K., Jewell, L., Moss, E., & Gledhill, I. M. (2010). Experimental observation of capillary instabilities of two phase flow in a microfluidic T-junction. SACAM 2010. http://hdl.handle.net/10204/4847Mbanjwa, MB, KJ Land, L Jewell, EA Moss, and Irvy MA Gledhill. "Experimental observation of capillary instabilities of two phase flow in a microfluidic T-junction." (2010): http://hdl.handle.net/10204/4847Mbanjwa M, Land K, Jewell L, Moss E, Gledhill IM, Experimental observation of capillary instabilities of two phase flow in a microfluidic T-junction; SACAM 2010; 2010. http://hdl.handle.net/10204/4847 .TY - Conference Presentation AU - Mbanjwa, MB AU - Land, KJ AU - Jewell, L AU - Moss, EA AU - Gledhill, Irvy MA AB - This paper discusses the experimental observation of capillary instabilities of two-phase flow in a microfluidc T-junction. These instabilities are analogous to the classical Plateau-Rayleigh instabilities. The experiments were carried out with mineral oil and water in a rectangular microchannel of 100 μm width and depth of 75 μm. The interfacial tension of the system was around 3 mN/m after addition of a surfactant in the oil phase. We report on the instabilities observed in three fluid inlet configurations in T-junctions under the same flow parameters. The inlet geometry was found to have limited influence on the behaviour of the flow while the flowrate of the water phase is considered more important DA - 2010-01 DB - ResearchSpace DP - CSIR KW - Capillary instability KW - Microfluidic T-junction KW - Plateau-Rayleigh instabilities KW - Interfacial tension KW - SACAM 2010 KW - Applied mechanics LK - https://researchspace.csir.co.za PY - 2010 SM - 978062049192 T1 - Experimental observation of capillary instabilities of two phase flow in a microfluidic T-junction TI - Experimental observation of capillary instabilities of two phase flow in a microfluidic T-junction UR - http://hdl.handle.net/10204/4847 ER -