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3D transient CFD model for rolling piston compressor with dynamic reed valve.

Number: pap. 1548

Author(s) : DING H., GAO H.

Summary

In this paper, a full 3D transient computational fluid dynamics (CFD) model for a rolling piston compressor with reed valve is described in detail. In the proposed model, a moving/deforming mesh algorithm was developed for the fluid pockets of the compressor. The bending of the reed valve is modeled as a rotational structure with a moving/deforming mesh for the affected fluid volume. The motion of the valve is solved using a one dimensional rotational ordinary differential equation (ODE). Important parameters of the rotational dynamics, such as the torsion constant, are derived from bending cantilever beam theory. The meshing and re-meshing algorithms for the fluid volumes of rolling piston and the rotational valve were implemented in a CFD package PumpLinx. The test simulation of a generic rolling compressor with a discharger reed valve demonstrates that the algorithms and the implementations are robust, fast and user friendly, and can be readily applied to rolling piston compressor systems.

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Pages: 10 p.

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Details

  • Original title: 3D transient CFD model for rolling piston compressor with dynamic reed valve.
  • Record ID : 30014065
  • Languages: English
  • Source: 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
  • Publication date: 2014/07/14

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