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Some issues regarding spectral element meshes for moving journal bearing systems
Author(s) -
Gwynllyw D. Rh.,
Phillips T. N.
Publication year - 2005
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.932
Subject(s) - bearing (navigation) , context (archaeology) , mesh generation , lubrication , polygon mesh , finite element method , computer science , element (criminal law) , eulerian path , displacement (psychology) , inertial frame of reference , mathematics , salient , mechanical engineering , lagrangian , engineering , structural engineering , classical mechanics , physics , geology , artificial intelligence , computer graphics (images) , law , psychology , paleontology , political science , psychotherapist
This paper concerns the modelling of dynamically loaded journal bearing systems using a moving spectral element method. The moving grid method employed in this paper is the arbitrary Lagrangian–Eulerian (ALE) method. The ALE methodology is compared with a quasi‐Eulerian approach in the context of dynamically loaded journal bearings and the advantages of adopting the ALE formulation are highlighted. A comparison with the predictions of lubrication theory is also presented and the limitations of the lubrication approximation are demonstrated when inertial effects are significant. A comprehensive set of results is presented illustrating the salient features of the spectral element mesh generation schemes described in the paper and the way in which these impinge on the efficiency of the iterative solution of the discrete equations at each time step. Copyright © 2005 John Wiley & Sons, Ltd.