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Published in:
2014 | OriginalPaper | Chapter
An Immersed Boundary Method for Simulating an Oscillating Airfoil
Authors : Guotun Hu, Lin Du, Xiaofeng Sun
Published in: Fluid-Structure-Sound Interactions and Control
Publisher: Springer Berlin Heidelberg
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Abstract
The numerical simulation associated with fluid–structure interaction problems is very complicated for the grid regeneration in the traditional method. In the present work, a fast explicit numerical method is established to solve the unsteady flow with oscillation of a rotor blade on the basis of the immersed boundary method. The governing equations are discretized on simple Cartesian meshes by using the immersed boundary method and the blade can move arbitrarily in the computational domain. It is found that the oscillation of rotor blades is influenced greatly by the reduced velocity and cascade solidity.