Abstract
There has been considerable research on unsteady rigid airfoils that are different configuration and thickness. However, dynamic fluid forces and flow fields about moving elastic airfoils have not been understood. Because, these flow fields around moving elastic bodies are treated as fluid-structure interaction(FSI), and increase considerable parameter about structure division. Especially, bending stiffness of elastic body has a lot value depending on young's modulus, cross-sectional shape and thickness. As a result, flow fields around the elastic airfoils with same bending stiffness value are thought that are different. In the present paper, we simulate the flow field around the elastic heaving airfoils by fluid structure interaction simulation using ANSYS 14.0/ANSYS CFX 14.0.