2026-04-13T06:10:38Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/187942026-02-05T02:59:00Zcom_2072_1033col_2072_452950

Experimental analysis of the bubble-slug transition in a flow generated by a T-junction in a minichannel with air/water and air/ethanol mixtures in conditions relevant to microgravity Arias Calderón, Santiago González Cinca, Ricardo Escola d'Enginyeria de Telecomunicació i Aeroespacial de Castelldefels Universitat Politècnica de Catalunya. Departament de Física Aplicada Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri Àrees temàtiques de la UPC::Física Reduced gravity environments Multiphase flow Bubbles--Effect of reduced gravity on Fluid mechanics Mecànica de fluids Flux multifàsic Bombolles We present an experimental study on the bubble–slug flow pattern transition which takes place in two-phase flows in microgravity related conditions. Two different sets of experiments were performed on ground with air/water and air/ethanol mixtures in a minichannel with an internal diameter of 1 mm. We address questions regarding the existence of a critical void fraction for the bubble–slug transition to occur. Experimental data are compared to the drift-flux and Suratman models predictions. We obtain results on the extension of applicability of these models for different boundary conditions. Peer Reviewed Postprint (published version) 2013-01-31 Article Arias, S.; Gonzalez, R. Experimental analysis of the bubble-slug transition in a flow generated by a T-junction in a minichannel with air/water and air/ethanol mixtures in conditions relevant to microgravity. "Chemical engineering science", 31 Gener 2013, vol. 91, p. 5-10. 0009-2509 https://hdl.handle.net/2117/18794 10.1016/j.ces.2012.12.036 eng http://www.sciencedirect.com/science/article/pii/S0009250912007270 http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Restricted access - publisher's policy Attribution-NonCommercial-NoDerivs 3.0 Spain 6 p. application/pdf