| 摘要 |
PROBLEM TO BE SOLVED: To calculate difference values different in two divided areas when thickness of a structure is thinner than grid spacing of fluid and two fluid areas separated by the structure exist in a cell of a grid of the fluid in a fluid-structure interaction problem. SOLUTION: In numeric calculation technique for numerically simulating a dynamic interaction problem of the fluid defined on the grid and the structure whose thickness is thinner than the grid spacing of the grid, when a part or the whole of the cell of the target grid is divided into two by the structure, the cell is divided by the desired number N of divisions and when the partial area is divided into two spaces of a first space and a second space, physical quantity of the fluid on the grid is calculated using a method for redefining first physical quantity on the first space side by second physical quantity defined in the first space and third physical quantity of the structure and a method for redefining the first physical quantity on the second space side by using the second physical quantity defined in the second space and the third physical quantity of the structure in the second space. COPYRIGHT: (C)2007,JPO&INPIT
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