A Cartesian Grid Generation Method Considering a Complicated Cell Geometry at the Body Surface
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- LAHUR Paulus R.
- School of Engineering, Nagoya University
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- NAKAMURA Yoshiaki
- Department of Aerospace Engineering, Nagoya University
Bibliographic Information
- Other Title
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- Cartesian Grid Generation Method Considering a Complicated Cell Geometry at the Body Surface
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Abstract
A cell-splitting method for Cartesian grid generation that has the capability of taking into account the cases of thin body and sharp edge is proposed in this paper. Such cases are frequently found when solving the flow around a very thin wing, such as that of a supersonic transport (SST). The method has also been extended to treat the problem of multiple solid regions within a cell, which is sometimes encountered at a highly curved body surface. Validation of the method proposed here is carried out on a sharp, thin double wedge in a supersonic flow, where significant improvements in accuracy are achieved at the cost of a small increase in the number of cells. Furthermore, application of the present method to a model of SST shows its effectiveness on a three-dimensional, realistic geometry. As a result of making a pseudo-planar approximation for body surface elements, the total number of body surface elements was reduced by a factor of about 3.2 in this application. Local grid refinement by relocating grid cells to a curved surface is also proposed, so that a more accurate solution is obtained with a reasonable number of cells.
Journal
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- TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 43 (139), 8-15, 2000
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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Details
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- CRID
- 1390001204080108672
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- NII Article ID
- 10004294259
- 30018763473
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- NII Book ID
- AA0086707X
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- ISSN
- 21894205
- 05493811
- http://id.crossref.org/issn/0015749X
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- NDL BIB ID
- 5423298
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed