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Evaluation of Heat Transfer Effect on a Thermal System Using Numerical Simulation

[+] Author Affiliations
O. M. Al-Habahbeh, D. K. Aidun, P. Marzocca

Clarkson University, Potsdam, NY

H. Lee

GE Energy, Houston, TX

Paper No. IMECE2008-68368, pp. 677-683; 7 pages
doi:10.1115/IMECE2008-68368
From:
  • ASME 2008 International Mechanical Engineering Congress and Exposition
  • Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C
  • Boston, Massachusetts, USA, October 31–November 6, 2008
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4871-5 | eISBN: 978-0-7918-3840-2
  • Copyright © 2008 by ASME

abstract

A method that links several commercially available tools to estimate the fatigue life of thermal systems is introduced. The procedure provides an engineering tool based on existing computational packages. It is sufficiently general that it can be used for any thermal application involving fluid flow and a solid medium. A cylindrical ring model is presented to clarify the process. Computational Fluid Dynamics (CFD) and Finite Element Modeling (FEM) tools are integrated within the proposed approach. ANSYS/CFX® and Simulation® are used for such purpose. The process starts with CFD simulation to determine the convective terms necessary for the transient FEM thermal analysis. The transient FEM thermal analysis provides maximum thermal stress values. These values are employed in the fatigue life analysis to determine the fatigue life of the component.

Copyright © 2008 by ASME

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