Multi-parameter aerodynamic modeling for aeroelastic coupling in turbomachinery |
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| Authors: | D-M Tran |
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| Institution: | Aeroelasticity and Structural Dynamics Department, ONERA, The French Aerospace Lab, B.P. 72, 29 avenue de la Division Leclerc, 92322 Châtillon Cedex, France;Department of Mathematics, Faculty of Science, University of Zagreb, Bijeni?ka 30, 10000 Zagreb, Croatia;College of Information Science and Engineering, Northeastern University, Shenyang, Liaoning Province 110004, China;State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, People’s Republic of China;State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, People’s Republic of China;State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, Changchun, People’s Republic of China;First Department of Respiratory Medicine, First Affiliated Hospital of Sichuan Medical University, Luzhou, Sichuan 646000, China |
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| Abstract: | A multi-parameter method based on multivariate spline function approximation and minimum state smoothing for modeling the generalized aerodynamic forces is proposed in order to reduce the cost of the aerodynamic computations in the solution of the coupled fluid–structure problem in turbomachinery. This method allows simultaneous variations of several parameters and provides the solutions of the coupled systems at arbitrary values of the parameters using the generalized aerodynamic forces computed at the few values of the parameters. This multi-parameter aerodynamic modeling method is applied to a large-chord blade, for which the two chosen parameters are the rotation speed and the inter-blade phase angle. |
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