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A moving mesh algorithm for aero-thermo-mechanical modelling in turbomachinery

Amirante, D, Hills, NJ and Barnes, CJ (2012) A moving mesh algorithm for aero-thermo-mechanical modelling in turbomachinery International Journal for Numerical Methods in Fluids, 70 (9). pp. 1118-1138.

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Abstract

This paper describes the development of a mesh deformation method used for aero-thermo-mechanical coupling of turbo-engine components. The method is based on the nonlinear solution of an elastic medium analogy, solved using finite element discretisation and modified to let the boundary nodes be free to slide over the deflected surfaces. This sliding technique relies on a B-spline reconstruction of the moving boundary and increases the robustness of the method in situations where the boundary deflection field presents significant gradients or large relative motion between two distinct boundaries. The performance of the method is illustrated with the application to an interstage cavity of a turbine assembly, subjected to the deformations computed by a coupled thermo-mechanical analysis of the engine component.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
AuthorsEmailORCID
Amirante, DUNSPECIFIEDUNSPECIFIED
Hills, NJUNSPECIFIEDUNSPECIFIED
Barnes, CJUNSPECIFIEDUNSPECIFIED
Date : November 2012
Identification Number : 10.1002/fld.2734
Additional Information : This is the accepted version of the following article: Amirante D, Hills N, Barnes C. (2012) A moving mesh algorithm for aero-thermo-mechanical modelling in turbomachinery. International Journal for Numerical Methods in Fluids 70(9):1118-1138, which has been published in final form at http://dx.doi.org/10.1002/fld.2734.
Depositing User : Symplectic Elements
Date Deposited : 14 Oct 2014 12:46
Last Modified : 14 Oct 2014 13:33
URI: http://epubs.surrey.ac.uk/id/eprint/735949

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