Banieghbal, M.R., Weston, William and Pountney, D.C. (1989) A numerical study of turbulent flow characteristics of servo‐valve orifices. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power Engineering 1989 (vol 203), 203 (21). pp. 139-147. ISSN 0954-4046

A numerical scheme based on the k—e turbulences model has been employed to determine turbulent flow characteristics of servo-valve orifices. Numerical predictions of flow patterns, flow coefficients and pressure variations within the valve orifice are presented and their implications for control of spool forces and cavitation effects are considered. The limitations of the model are considered and a proposal for more effective servo-valve modelling, together with a comparable experimental study, is made.

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