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A Study on CFD Data Compression Using Hybrid Supercompact Wavelets

Title
A Study on CFD Data Compression Using Hybrid Supercompact Wavelets
Author
이도형
Keywords
CFD; Data Compression; Hybrid Method; Supercompact Multiwavelet Nomenclature
Issue Date
2002-10
Publisher
대한기계학회
Citation
Journal of Mechanical Science and Technology, v. 17, no. 11, page. 1784-1792
Abstract
A hybrid method with supercompact multiwavelets is suggested as an efficient and practical method to compress CFD dataset. Supercompact multiwavelets provide various advantages such as compact support and orthogonality in CFD data compression. The compactness is a crucial condition for approximated representation of CFD data to avoid unnecessary interaction between remotely spaced data across various singularities such as shock and vortices. But the supercompact multiwavelet method has to fit the CFD grid size to a product of integer and power of two, mX 2n. To resolve this problem,the hybrid method with combination of 3, 2 and 1 dimensional version of wavelets is studied. With the hybrid method, any arbitrary size can be handled without any shrinkage or expansion of the original problem. The presented method allows high data compression ratio for fluid simulation data. Several numerical tests substantiate large data compression ratios for flow field simulation successfully.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00531747?https://repository.hanyang.ac.kr/handle/20.500.11754/157717
ISSN
1738-494X; 1976-3824
DOI
10.1007/BF02983609
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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