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Unstructured mesh adaptation for turbo-machinery RANS computation
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Flight Dynamics.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This paper gives an overview of the mathematical and practical tools that can be used in turbo-machinery RANS simulation to realize unstructured mesh adaptation. It first presents the concept of metric and recalls that the hessian of the physical flow properties can become, thanks to small modifications, both a metric and a upper bound of the P1 projection error. The resulting metric is then studied on a simple 2D case. In a second part, the industrial application of this concept is addressed and the tools used to overcome the turbo-machinery specificities are explained. Finally, some 2D and 3D results are presented.

Place, publisher, year, edition, pages
2017. , 9 p.
Series
TRITA-AVE, ISSN 1651-7660 ; 2017:24
Keyword [en]
Metric tensor, mesh adaptation, anisotropy, projection error, turbo-machinery, unstructured mesh, Riemannian
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-211161OAI: oai:DiVA.org:kth-211161DiVA: diva2:1127908
External cooperation
Safran Tech
Supervisors
Examiners
Available from: 2017-07-20 Created: 2017-07-20 Last updated: 2017-07-20Bibliographically approved

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fulltext(1614 kB)47 downloads
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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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