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비선형 보간 기반의 희소점 표현 웨이블렛

Title
비선형 보간 기반의 희소점 표현 웨이블렛
Other Titles
Nonlinear Interpolation-based Sparse Point Representation Wavelets
Author
이도형
Keywords
CFD(전산유체역학); Nonlinear Interpolation wavelets(비선형 보간 웨이블렛); Sparse Point Representation(희소점 표현법)
Issue Date
2005-05
Publisher
대한기계학회
Citation
2005 대한기계학회 창립 60주년 기념 춘계학술대회 강연 및 논문 초록집, Page. 2,734 - 2,739
Abstract
In this work, a nonlinear interpolation-based sparse point representation wavelets is presented to effectively represent local nonlinear features of a flow field. The method is an interpolation-based wavelets using locally varying orders of accuracy. We employ the sparse point representation to attain fine compression ratio and to reduce computation workload. The order variation algorithm is applied for the purpose of preserving highly nonlinear features such as shock and vortices. To verify the proposed method, we consider several one-dimensional discontinuity problems, a two-dimensional heat conduction, and a disturbed wave of half sinusoidal shape. From the results, it is shown that the nonlinear interpolation wavelets provides us with high accuracy and fine compression ratio in benign flow including local peculiar features. Thus it may be concluded that the nonlinear interpolation wavelets is highly promising for discontinuous CFD data compressions.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00914368&language=ko_KRhttps://repository.hanyang.ac.kr/handle/20.500.11754/110517
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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