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Preparation of Geometry Models for Mesh Generation and CFD

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WHITE PAPER Preparation of Geometry Models for Mesh Generation and CFD NASA's CFD Vision 2030 Study [1] stated that "most standard CFD analysis processes for the simulation of geometrically complex configurations are onerous." A major factor contributing to this perception is the preparation of geometry models for mesh generation, a task deemed a "significant bottleneck" in CFD workflows. The implication of the word "preparation" is that the geometry models used for CFD (computational fluid dynamics) – in other words, the shape of the object around and through which the flow is to be computed – cannot be readily and easily meshed in the form in which they are provided; they are not suitable. It logically follows that better geometry model preparation must be provided to the CFD practitioner to remove geometry model preparation as a significant bottleneck in CFD workflows. The practitioner's tools for model preparation have to be improved. Contents Geometry Modeling Fundamentals ......................2 Sources of Geometry Model Unsuitability ........ 8 Summary ....................................................................13 References ................................................................13 Notes and Acknowledgments ..............................15 Appendix ....................................................................15

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