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유한요소/유한체적법 기반의 상용전산유체역학 프로그램의 유동장 변화에 대한 비교
정우원(W. Jeong),성재훈(J. Seong),이계한(K. Rhee),곽대순(Dai-Soon Kwak) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
Recently, many studies for flow characteristics have used commercial computational fluid dynamics (CFD) software to simulate flow phenomena in various fields. The aim of this study is to contribute to the discussion on the efficiency of finite element (FE) and finite volume (FV) methods, which have mainly used as CFD solvers for situations with the same number of mesh elements and geometries. We compared the accuracy of the results and the flow patterns among three different commercial codes - Ansys CFX, Fluent and ADINA, which are used in many fields. We calculated threedimensional incompressible laminar flow problems with simple pipe and bifurcation models. Our results showed that FEM CFD codes (ADINA) were more influenced by the mesh type and quality compared to FVM CFD codes (Ansys CFX, Fluent). The computation time was found to be significantly shorter for the FVM compared to the FEM codes.