Study of aero-engine oil-air separators
Wang, Y. and Simmons, K. and Eastwick, Carol and Hibberd, S. (2006) Study of aero-engine oil-air separators. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 220 (7). pp. 707-717. ISSN 0957-6509
Official URL: http://pia.sagepub.com/content/220/7/707
For aero-engines, oil-air separation is a key function, and one approach to assessing separator effectiveness is computational fluid dynamics (CFD). The two-phase flow is complex and oil can be present in different forms (for example, droplets, mist, film). However, necessary modelling simplifications may affect solution accuracy and range of validity. This article presents a modelling methodology for oil-air separators; the effect of simplifications is discussed and their relative magnitude assessed. Comparison with available experimental data is presented. It is concluded that although simplification has an impact, the significant features of the oil-air separator are predicted with sufficient accuracy to allow design comparisons.
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