Best Practices and Recommendations for CFD Simulation of Hydraulic Spool Valves
Abstract
The proposed communication deals with the design and development of an innovative rotary direct-drive servovalve for aerospace applications. A key challenge of the project is to reduce the torque required to drive the rotary spool by combining a CFD approach and shape optimization using a commercial software. The present communication addresses an important phase of the project: gaining confidence in the simulation results. In the particular case of high-pressure valve design, the authors have experienced that the calculated overall hydraulic force depends on the parameterization used to build and run the CFD model. This led them to investigate in detail, first on a linear spool valve well known in literature, the influence of the studied domain and the parameterization of the CFD simulation. A step-by-step process is adopted to increase confidence in the CFD simulations and a set of best practices and recommendations is proposed for the efficient use of CFD in the design of high-pressure spool valves.
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