publication . Article . 2013

Grid deformation strategies for CFD analysis of screw compressors

Rane, S.; Kovacevic, A.; Stosic, N.; Kethidi, M.;
Open Access English
  • Published: 01 Nov 2013
  • Publisher: Elsevier
Abstract
Customized grid generation of twin screw machines for CFD analysis is widely used by the refrigeration and air-conditioning industry today, but is currently not suitable for topologies such as those of single screw, variable pitch or tri screw rotors. This paper investigates a technique called key-frame re-meshing that supplies pre-generated unstructured grids to the CFD solver at different time steps. To evaluate its accuracy, the results of an isentropic compression-expansion process in a reciprocating piston cylinder arrangement have been compared. Three strategies of grid deformation; diffusion equation mesh smoothing, user defined nodal displacement and key...
Subjects
acm: ComputingMethodologies_COMPUTERGRAPHICS
free text keywords: TA
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