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Effect of Mesh Size in Numerical Simulation of Turbine Housing in Turbocharger
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 10, 2018 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Numerical method is popular in analyzing turbine housing in turbocharger with an early and rapid risk assessment. However, complex casting and extreme thermal loading from exhaust gas temperature and flow variation under engine duty cycle lead to big thermal stress and this makes material serviced in the plastic zone. Previous numerical simulations show that a mesh size is insensitive to the elastic finite element analysis (FEA), but might not be proper for elastic-plastic FEA, even that other boundary conditions keep same, which indicating simulation results are changeable with mesh size and a simple numerical mesh size convergence might not be enough to guarantee accurate numerical results as well. Therefore, several different mesh sizes are used in elastic-plastic analysis of turbine housing to investigate the influence on numerical results. Based on the numerical results and their comparison, we conclude that theoretical results exist under smaller finite element size but it is impractical to reach under elastic-plastics analysis in engineering application because industrial resource is not enough to support. The reasonable mesh size is recommended to consider both accuracy of simulation results and industrial resource. The fatigue life model and Goodman diagram should be calibrated as well based on this mesh size to evaluate turbine housing design risk.
CitationGuo, H. and Long, H., "Effect of Mesh Size in Numerical Simulation of Turbine Housing in Turbocharger," SAE Technical Paper 2018-01-1715, 2018, https://doi.org/10.4271/2018-01-1715.
Data Sets - Support Documents
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- Liu , W.B. , Gheni , M. , and Yu , L. Effect of Mesh Size of Finite Element Analysis in Modal Analysis for Periodic Symmetric Struts Support In Key Engineering Materials 462 1008 1012 2011
- Raut , P. Impact of Mesh Quality Parameters on Elements Such as Beam, Shell and 3D Solid in Structural Analysis International Journal of Engineering Research Applications 2 99 103 2012
- Liu , Y. Choose the Best Element Size to Yield Accurate FEA Results While Reduce FE Models’s Complixity British Journal of Engineering and Technology 1 7 13 28 2013
- Liu , Y. and Glass , G. Effects of Mesh Density on Finite Element Analysis SAE Technical Paper 2013-01-1375 2013 10.4271/2013-01-1375
- Guo , H. , Du , X. , and Wang , D. A Novel Design and Validation for Turbine Housing Inlet Flange SAE Technical Paper 2013-01-2645 2013 10.4271/2013-01-2645
- Guo , W. , Guo , H. , Du , X. , and Wang , D. Turbine Housing Boss Design in Turbocharger Application SAE Technical Paper 2014-01-2849 2014 10.4271/2014-01-2849
- Guo , W. , and Guo , H. 2016 Thermal Mechanical Fatigue and Creep Interaction in Turbine Housing Divider Wall Design ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition