A moving mesh algorithm for aero-thermo-mechanical modelling in turbomachinery
Article first published online: 18 JAN 2012
Copyright © 2012 John Wiley & Sons, Ltd.
International Journal for Numerical Methods in Fluids
Volume 70, Issue 9, pages 1118–1138, 30 November 2012
How to Cite
Amirante, D., Hills, N.J. and Barnes, C.J. (2012), A moving mesh algorithm for aero-thermo-mechanical modelling in turbomachinery. Int. J. Numer. Meth. Fluids, 70: 1118–1138. doi: 10.1002/fld.2734
- Issue published online: 10 OCT 2012
- Article first published online: 18 JAN 2012
- Manuscript Accepted: 17 NOV 2011
- Manuscript Revised: 10 NOV 2011
- Manuscript Received: 18 JUL 2011
- mesh adaptation;
- fluid–structure interaction;
- finite element;
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. Copyright © 2011 John Wiley & Sons, Ltd.