격자 변형 기법을 사용한 운동하는 2차원 실린더 주위의 유동 해석

ANALYSIS OF TWO-DIMENSIONAL FLOW AROUND AN OSCILLATING CYLINDER USING MOVING MESH TECHNIQUES

Recently, thanks to advanced computational power and numerical techniques, it is made possible to analyze the flow around moving bodies using computational fluid dynamics techniques. In those simulations, moving mesh techniques should be able to represent both the body motion and boundary deformation which are frequently encounterd in fluid-structure interaction and/of six degree-of-freedom problems. There are several moving mesh techniques such as the Laplacian operator based, tension spring based and elastic deformation based methods. In the present study, the Laplacian operator based method was utilized and the results were validated. For the validation, the flow around an oscillating two-dimensional cylinder was simulated and analyzed.