한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 2006년도 추계 학술대회논문집
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- Pages.47-50
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- 2006
사각형 적응 격자 고차 해상도 수치 기법의 개발
DEVELOPMENT OF A HIGH-ORDER NUMERICAL METHOD IN THE QUADRILATERAL ADAPTIVE GRIDS
- Chang, S.M. ;
- Morris, P.J. (Dept. Aerospace Eng., Penn State University)
- 발행 : 2006.10.13
초록
In the aeroacoustic application of computational fluid dynamics, the physical phenomena like the crackle in the unsteady compressible jets should be based on very time-accurate numerical solution. The accuracy of the present numerical scheme is extended to the fifth order, using the WENO filter to the sixth-order central difference computation. However, the computational capacity is very restricted by the environment of computational power, so therefore the quadrilateral adaptive grids technique is introduced for this high-order accuracy scheme. The first problem is the multi-dimensional interpolation between fine and coarse grids. Some general benchmark problems are solved to show the effectiveness of this method.