NDLI: Integrated Approach for Life Prediction of Complex Thermal Systems

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Al-Habahbeh, O. M. Aidun, D. K. Marzocca, P. Lee, H.
Copyright Year	2009
Abstract	Many engineering thermal systems involve a high degree of technical risk. Their deterioration could be induced by the flow of high temperature fluids. A high-fidelity assessment tool is presented which enables the simulation of a wide array of thermal systems. It is based on linking multiple computational tools to deal with complex thermal systems. These systems may involve fluid-structure interactions. Computational Fluid Dynamics (CFD), Finite Element Method (FEM), and Fatigue tools are integrated within this approach. The CFD part of the method is first applied to an existing model, where the internal and external heat transfer coefficients are determined, and then compared to the manually-computed coefficients. The results showed good agreement between the two methods. Next, the process is applied to a simple cylindrical ring model, where CFD simulation is first performed to determine the heat transfer parameters that are needed for the transient FEM simulation. The FEM analysis results in the maximum thermal stress whereby the fatigue life of the component is computed. Finally, the effect of varying the turbulence intensity on heat transfer coefficients, thermal stress, and fatigue life is investigated.
Starting Page	109
Ending Page	120
Page Count	12
File Format	PDF
ISBN	9780791843864
DOI	10.1115/IMECE2009-13343
e-ISBN	9780791838631
Volume Number	Volume 13: New Developments in Simulation Methods and Software for Engineering Applications; Safety Engineering, Risk Analysis and Reliability Methods; Transportation Systems
Conference Proceedings	ASME 2009 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2009-11-13
Publisher Place	Lake Buena Vista, Florida, USA
Access Restriction	Subscribed
Subject Keyword	Life prediction Fatigue life Integrated approach Fem simulation Cfd simulation Thermal systems Physics-based modeling Heat transfer Computational fluid dynamics Finite element methods Simulation
Content Type	Text
Resource Type	Article

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