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Int. J. Turbomach. Propuls. Power 2017, 2(2), 7; doi:10.3390/ijtpp2020007

Analysis of the Aerodynamic and Structural Performance of a Cooling Fan with Morphing Blade

1
Fluid Machinery Research Group, Engineering Department in Ferrara (EnDiF), University of Ferrara, 44121 Ferrara FE, Italy
2
Metallurgy Research Group, Engineering Department in Ferrara (EnDiF), University of Ferrara, 44121 Ferrara FE, Italy
This paper is an extended version of our paper in Proceedings of the European Turbomachinery Conference ETC’12, 2017, Paper No. 228.
*
Author to whom correspondence should be addressed.
Academic Editor: Michel Dumas
Received: 14 April 2017 / Revised: 15 May 2017 / Accepted: 16 May 2017 / Published: 23 May 2017
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Abstract

The concept of smart morphing blades, which can control themselves to reduce or eliminate the need for active control systems, is a highly attractive solution in blade technology. In this paper, an innovative passive control system based on Shape Memory Alloys (SMAs) is proposed. On the basis of previous thermal and shape characterization of a single morphing blade for a heavy-duty automotive cooling axial fan, this study deals with the numerical analysis of the aerodynamic loads acting on the fan. By coupling computational fluid dynamics and finite element method approaches, it is possible to analyze the actual blade shape resulting from both the aerodynamic and centrifugal loads. The numerical results indicate that the polymeric blade structure ensures proper resistance and enables shape variation due to the action of the SMA strips. View Full-Text
Keywords: morphing blade; adaptive geometry; computational fluid dynamics; fluid-structure coupling morphing blade; adaptive geometry; computational fluid dynamics; fluid-structure coupling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Suman, A.; Fortini, A.; Aldi, N.; Pinelli, M.; Merlin, M. Analysis of the Aerodynamic and Structural Performance of a Cooling Fan with Morphing Blade. Int. J. Turbomach. Propuls. Power 2017, 2, 7.

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Int. J. Turbomach. Propuls. Power EISSN 2504-186X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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