Numerical simulation of external gear pump using immersed solid method

Title
Numerical simulation of external gear pump using immersed solid method
Author(s)
심재술윤용한박병호한용운홍병주[홍병주]
Keywords
Computer simulation; Gear pumps; Housing; Inlet flow; Speed; Circulation flow; Constant pressures; External gear pumps; High rotational speed; Mass flow rate; Rotational speed; Solid methods; Efficiency
Issue Date
201401
Citation
Transactions of the Korean Society of Mechanical Engineers, B, v.38, no.1, pp.95 - 101
Abstract
In this study, an ISM (immersed solid method) was used for investigating the mass flow rate and efficiency of an involute-gear pump featuring very high rotational speed. For considering circulation flow at the gear pump and housing, fluid flow was assumed as turbulent, and the rotational speed of the gear pump increased under the condition of constant pressure at both the inlet and outlet. The efficiency and mass flow rate of the gear pump were studied by varying its rotational speed and the clearance between the gear tip and the housing. In the simulation results, as the rotational speed were increased, the average mass flow rate and efficiency increased. Furthermore, as the clearance between the gear tip and the housing was increased, the average mass flow rate and efficiency decreased. The efficiency was 85.11, 90.94, and 93.62 at rotational speeds of 6,000 rpm, 8,000 rpm, and 10,000 rpm, respectively, under the condition that there was no clearance. In addition, the efficiency was 93.62, 93.29, and 92.74 at clearances of 0 m, 0.00001 m, and 0.00003 m respectively. ? 2014 The Korean Society of Mechanical Engineers.
URI
http://hdl.handle.net/YU.REPOSITORY/33435http://dx.doi.org/10.3795/KSME-B.2014.38.1.095
ISSN
1226-4881
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공과대학 > 기계공학부 > Articles
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