NDLI: 3D Coupled Fluid-Solid Thermal Simulation of a Turbine Disc Through a Transient Cycle

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Sun, Zixiang John, W. Chew Nicholas, J. Hills Christopher, J. Barnes Valencia, Antonio Guijarro
Copyright Year	2012
Abstract	Thermal analysis of a turbine disc through a transient test cycle is demonstrated using 3D computational fluid dynamics (CFD) modeling for the cooling flow and 3D finite element analysis (FEA) for the disc. The test case is a 3D angular sector of the high pressure (HP) turbine assembly of a civil jet engine and includes details of the coolant flow around the blade roots. Proprietary FEA and CFD solvers are used to simulate the metal and fluid domains, respectively. Coupling is achieved through an iterative loop with smooth exchange of information between the FEA and CFD simulations at each time step, ensuring consistency of temperature and heat flux on the coupled interfaces between the metal and fluid domains. The coupled simulation can be completed within a few weeks using a PC cluster with multiple parallel CFD executions. The FEA/CFD coupled result agrees well with corresponding rig test data and the baseline 3D and 2D FEA solutions, which have been calibrated using test data. Provision of upstream boundary conditions and modeling of rapid transients are identified as areas of uncertainty. Averaging of CFD solutions and relaxation is used to overcome difficulties caused by CFD oscillations associated with flow unsteadiness. The present work supports the continued use and development of the FEA/CFD coupling method for industrial applications.
Sponsorship	International Gas Turbine Institute
Starting Page	1959
Ending Page	1969
Page Count	11
File Format	PDF
ISBN	9780791844700
DOI	10.1115/GT2012-68430
Volume Number	Volume 4: Heat Transfer, Parts A and B
Conference Proceedings	ASME Turbo Expo 2012: Turbine Technical Conference and Exposition
Language	English
Publisher Date	2012-06-11
Publisher Place	Copenhagen, Denmark
Access Restriction	Subscribed
Subject Keyword	Cycles Relaxation (physics) Temperature Uncertainty Cooling Computational fluid dynamics Blades Metals Oscillations Flow (dynamics) Modeling Heat flux Jet engines Transients (dynamics) High pressure (physics) Fluids Simulation Disks Boundary-value problems Coolants Finite element analysis Manufacturing Thermal analysis Turbines
Content Type	Text
Resource Type	Article

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