Modeling Cavitation in a Hydraulic Poppet Valve: Comparison with Experiments and the Effect of Processing Parameters

Publish Year: 1387
نوع سند: مقاله کنفرانسی
زبان: English
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CFD11_113

تاریخ نمایه سازی: 12 مرداد 1387

Abstract:

Transient incipient cavitation in an oil hydraulic poppet valve is numerically simulated using a computational model based on Volume-of-Fluid (VOF) technique where transient 2D/axisymmetric Navier- Stokes equations are solved along with an equation to track the cavity interface. The numerical results are compared with those of the available experiments in the literature. The method is then used to improve the hydraulic valve performance based on cavity regimes in flow separation point. The effects of several parameters such as poppet height, poppet angle and poppet and seat configurations are discussed

Authors

Mohammad Passandideh-Fard

Assistant Professor Department of Mechanical Engineering Ferdowsi University of Mashhad

Hossein Moin

Graduate Student Department of Mechanical Engineering Ferdowsi University of Mashhad

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  • Fig. 1 Schematic of a poppet valve (Kikui, S. and ...
  • Fig. 2 Inception of cavitation from experiment (Kikui, S. and ...
  • Fig. 4 Down-stream Pressure fluctuations in the valve due to ...
  • 5 10 15 20 25 30 35 40 45 q ...
  • 10 15 20 25 30 35 40 45 q (cm^3/sec) ...
  • 1 0 20 30 40 50 Flow rate (cm^3/sec) ...
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