Mathematical Model of Spool Valve with Rectangular Grooves
Jia Chen, Zhaohui Yuan, Qiang Guo
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Source: Crossref
Published: Jun 1, 2018
DOI: 10.1051/jnwpu/20183630516
Open original source ↗Source abstract
A spool valve of aerospace hydraulic breaks down because of uneven pressure distribution between sleeve and spool, which is called as hydraulic lock. The rectangular grooves on the spool surface can effectively weaken the lateral force, thereby preventing the hydraulic lock. So the mathematical model of spool valve with rectangular grooves is established according to the Navier-Stokes equations based on the cylindrical coordinate system. To verify the effectivity of the mathematical model, the numerical simulation is compared and used to modified the mathematical model.
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