Capability of FDEM for Journal Bearings with Microstructured Surface

Torsten Adolph (), Willi Schönauer (), Roman Koch () and Gunter Knoll ()
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Torsten Adolph: Karlsruhe Institute of Technology, Steinbuch Centre for Computing
Willi Schönauer: Karlsruhe Institute of Technology, Steinbuch Centre for Computing
Roman Koch: University of Kassel, Institut für Maschinenelemente und Konstruktionstechnik
Gunter Knoll: University of Kassel, Institut für Maschinenelemente und Konstruktionstechnik

A chapter in High Performance Computing in Science and Engineering, Garching/Munich 2009, 2010, pp 175-183 from Springer

Abstract: Abstract For the numerical simulation of journal bearings, current software solutions use the Reynolds differential equation where inertia terms are not included. The Finite Difference Element Method (FDEM) is a black-box solver for nonlinear systems of elliptic and parabolic partial differential equations (PDEs). Based on the general black-box we implement the Reynolds equation with the nonlinear inertia terms for the simulation of a journal bearing. We can easily implement different models for the turbulence factors and the dynamic viscosity, and we also consider cavitation. We give results for grids with different microstructure for Reynolds number Re=24,500, and we also give a global error estimate for each of the cases. This shows the quality of the numerical solution and is a unique feature of FDEM. Furthermore, we demonstrate the scalability of the code.

Keywords: Message Passing Interface; High Performance Computing; Journal Bearing; Microstructured Surface; Parabolic Partial Differential Equation (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1007/978-3-642-13872-0_15

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