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http://dx.doi.org/10.3795/KSME-B.2010.34.2.129

Numerical Study on Hydraulic Fluid Flows Within Axial Piston Pumps  

Jeong, Jong-Hyun (Department of Mechanical Engineering, Dong-A University)
Kim, Jong-Ki (R&D Team1, Doosan Mottrol Co., Ltd.)
Suh, Yong Kweon (Department of Mechanical Engineering, Dong-A University)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.34, no.2, 2010 , pp. 129-136 More about this Journal
Abstract
Axial piston pumps have been widely used as power sources for hydraulic systems, but studies on the fluid flow within the pump have been usually performed using 1-D analysis because of the difficulties in considering the fluid compressibility, high-speed revolution, variation of the flow rate, and complicated geometry. The goal of this study was to understand the hydraulic fluid flow within axial piston pumps by using the 3-D numerical method and the process of generating discharge pressure ripples. To improve the convergence and robustness of the simulation model, a grid system was constructed with hexahedron-type grids around the valve plate. Furthermore, we employed an empirical formula to describe the relationship between the oil density and pressure. The CFD (computational fluid dynamics) results compared well with the experimental data.
Keywords
Axial Piston Pump; Computational Fluid Dynamics; Discharge Pressure Ripples; Cavitation;
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
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