인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
In the numerical studies, it is very important to accurately reflect the analyzing physical model, and usually the grid dependency tests are used to perform accurate numerical analysis by comparing the composition and size of the numerical grids. However, there is no obvious criterion for generating the composition and size of the grids in the grid dependency test. Meanwhile, the grid convergence index (GCI) method can numerically estimate the accuracy of the numerical analysis by estimation of discretization error through the grid generation. In addition, since the GCI calculation of a domain composed of the multi components can be affected by the grid configuration of each component, it is necessary to systematically analyze the correlation between the total grids and grids of each component. In this study, three-dimensional steady-state Reynolds-averaged Navier-Stokes analyses were performed with a turbulence model of shear stress transport to investigate the discretization error on the numerical grids of a Francis turbine model by the GCI method. The GCI calculations of total grids and grids of each component were conducted, and the enhanced effect of the total grids was confirmed by improving the component grids.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
최근 본 자료 전체보기
UCI(KEPA) : I410-ECN-0101-2020-554-000508208