CAJ | 학술논문

针对传统洞映射法存在挖洞曲面必须封闭的局限性和消耗大量内存的缺点，提出了改进型洞映射法。主要做了两点改进：1）采用“反向标记法”判别洞映射笛卡尔网格单元属性，使得挖洞曲面不再局限于封闭的情况；2）运用“矢量射线法”进一步判断洞映射笛卡尔网格边缘单元内的计算网格点属性，使得笛卡尔网格分辨率低时仍能精确挖洞。研究表明：相比于传统洞映射法，改进型洞映射法保持了很高的计算效率和精准挖洞的能力，还极大地降低了内存消耗，并且具有较强的可靠性。
침대전통동영사법존재알동곡면필수봉폐적국한성화소모대량내존적결점，제출료개진형동영사법。주요주료량점개진：1）채용“반향표기법”판별동영사적잡이망격단원속성，사득알동곡면불재국한우봉폐적정황；2）운용“시량사선법”진일보판단동영사적잡이망격변연단원내적계산망격점속성，사득적잡이망격분변솔저시잉능정학알동。연구표명：상비우전통동영사법，개진형동영사법보지료흔고적계산효솔화정준알동적능력，환겁대지강저료내존소모，병차구유교강적가고성。
The traditional hole-map method requests that hole-cutting surface should be watertight ,and it needs tremendous resources to restore information .Because of these two defects , an improved hole-map method is advanced in this paper .On one hand ,the usage of inverse-mark method in the improved method to judge the attribute of the Cartesian gird elements breaks through the limit of watertight hole-cutting sur-face.On the other hand ,it′s the vector-ray method used to determine the attribute of the computing grid points in the fringe cell for the improved method that makes hole-cutting accurate when the resolution of hole-map Cartesian grid is relatively low .The research indicates that the improved hole-map method has high efficiency ,low memory consumption ,capability of accurate hole-cutting and strong reliability .