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Fluid-structure interaction of a reed type valve subjected to piston displacement.

Number: pap. 1659

Author(s) : ESTRUCH O., LEHMKUHL O., RIGOLA J., et al.

Summary

The present paper deals with the dynamic simulation of the fluid flow through reed valves and is concerned with a partitioned fluid-structure interaction coupling scheme. In this work attends the newly in-house implemented computational fluid dynamics (CFD) and moving mesh coupled code TermoFluids. The CFD solver consists of a three-dimensional explicit finite volume fractional-step algorithm formulated in a second-order, conservative and collocated unstructured grid arrangement. Large eddy simulation is performed to solve the turbulent flow, using the subgrid scale WALE model. A radial basis function interpolation procedure is used to dynamically move the mesh according with the displacement of the valve. A simplified geometry of an axial hole plus a rectangular diffuser with a piston based inlet condition is considered. The valve dynamics is modelled by means of the normal mode summation methodology and a coefficient of restitution is applied to model the impact between the valve and its seat. A parametric study is presented in order to analyze the influence of the valve thickness.

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Pages: 10 p.

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Details

  • Original title: Fluid-structure interaction of a reed type valve subjected to piston displacement.
  • Record ID : 30014060
  • Languages: English
  • Source: 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
  • Publication date: 2014/07/14

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