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Fast high fidelity CFD/CSM fluid structure interaction using RBF mesh morphing and modal superposition method

Corrado Groth (Department of Enterprise Engineering “Mario Lucertini”, School of Engineering, Universita degli Studi di Roma Tor Vergata, Roma, Italy)
Ubaldo Cella (Department of Enterprise Engineering “Mario Lucertini”, School of Engineering, Universita degli Studi di Roma Tor Vergata, Roma, Italy)
Emiliano Costa (D’Appolonia SpA, Rome, Italy)
Marco Evangelos Biancolini (Department of Enterprise Engineering “Mario Lucertini”, School of Engineering, Universita degli Studi di Roma Tor Vergata, Roma, Italy)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 5 April 2019

Issue publication date: 15 August 2019

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Abstract

Purpose

This paper aims to present a fast and effective approach to tackle complex fluid structure interaction problems that are relevant for the aeronautical design.

Design/methodology/approach

High fidelity computer-aided engineering models (computational fluid dynamics [CFD] and computational structural mechanics) are coupled by embedding modal shapes into the CFD solver using RBF mesh morphing.

Findings

The theoretical framework is first explained and its use is then demonstrated with a review of applications including both steady and unsteady cases. Different flow and structural solvers are considered to showcase the portability of the concept.

Practical implications

The method is flexible and can be used for the simulation of complex scenarios, including components vibrations induced by external devices, as in the case of flapping wings.

Originality/value

The computation mesh of the CFD model becomes parametric with respect to the modal shape and, so, capable to self-adapt to the loads exerted by the surrounding fluid both for steady and transient numerical studies.

Keywords

Citation

Groth, C., Cella, U., Costa, E. and Biancolini, M.E. (2019), "Fast high fidelity CFD/CSM fluid structure interaction using RBF mesh morphing and modal superposition method", Aircraft Engineering and Aerospace Technology, Vol. 91 No. 6, pp. 893-904. https://doi.org/10.1108/AEAT-09-2018-0246

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited