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Automatic Grid Generation Method with Direct Treatment for Defective STL Data

Lahur, Paulus R., Atsushi Hashimoto, and Keiichi Murakami

Research Notes, 20th International Meshing Roundtable, Springer-Verlag, pp.Research Note, October 23-26 2011

IMR
PROCEEDINGS

20th International Meshing Roundtable
Paris, France
October 23-26, 2011

Research Center of Computational Mechanics, Inc. (RCCM), Shinagawa, Tokyo, 142-004, Japan
Japan Aerospace Exploration Agency (JAXA), Chofu, Tokyo, 182-8522, Japan
Email: lahur@oi.rccm.co.jp, hashimoto.atsushi@jaxa.jp, murakami.keiichi@jaxa.jp

Summary
Our objective in this study is to explore an automatic grid generation method for accurate Navier-Stokes flow computation, which can directly use the input of stereolithography (STL) data with defects, that is, without prior clean-up. This approach promises a significant improvement in CFD workflow, because the time and labor required for surface geometry preparation is very significant. Preliminary results suggest that the method is indeed promising. Progress is being made, especially regarding sharp feature capturing, as presented below.

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