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Adjoint RANS with filtered shape derivatives for hydrodynamic optimisation
Publikationstyp
Journal Article
Date Issued
2011-02-04
Sprache
English
Author(s)
Institut
TORE-URI
Journal
Volume
47
Issue
1
Start Page
22
End Page
32
Citation
Computers and Fluids 1 (47): 22-32 (2011-08-01)
Publisher DOI
Scopus ID
Publisher
Elsevier Science
The adjoint RANS method has been implemented in the framework of an unstructured general-purpose finite volume code following the derive-then-discretise strategy (continuous adjoint approach). An explicit filtering technique is applied to the shape derivatives in order to extract noise from the mesh-based representation of high-resolution. In a CAD-free optimisation strategy the method is applied to a semi-circular profile in incompressible, external flow. It was observed that the filtering is particularly relevant at high Reynolds-numbers. In the complex scenario of ship hull design, the filtered shape derivative can directly be applied to the base-line configuration in order to support both manual and automatic shape optimisation.
Subjects
Adjoint rans
Design optimization
Filtered shape derivatives
Gradient smoothness
Unstructured grids
DDC Class
600: Technik