CFD Simulation of a Post-Compensated Load Sensing Directional Control Valve

The paper presents the CFD model of a load sensing directional control valve. was validated experimentally in terms pressure drop and flow force at different positions spool. spool position imposed manually by means micrometric screw cell used for measuring force. developed with CAD-embedded tool FloEFD®. has been proved to be very reliable estimating drop, moreover quite good results were obtained also evaluation simulations tune coefficients lumped parameter valve, so that such can efficiently simulation an entire hydraulic circuit. Moreover, as design attenuating detrimental effect In particular, width land upstream metering edge influence on resultant If found it is possible significantly reduce maximum opening relatively small increment across