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Development of a scalable method for the efficient simulation of flows using dynamic goal-oriented local grid-adaptation
Citation Link: https://doi.org/10.15480/882.2057
Publikationstyp
Doctoral Thesis
Date Issued
2019
Sprache
English
Author(s)
Advisor
Referee
Visonneau, Michel
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2018-10-24
Institut
TORE-DOI
TORE-URI
First published in
Number in series
710
Citation
Schriftenreihe Schiffbau 710: (2019)
A dynamic local grid adaptation method has been implemented in an existing framework of a parallel general-purpose pressure-correction based RANS code for unstructured grids, to efficiently simulate flows in marine applications. Various refinement indicators were implemented, ranging from flow feature based criteria to goal oriented error estimators, derived from the adjoint solution of the primal flow problem. The efficiency of free surface flow simulations has been further enhanced by an explicit interface sharpening (EIS) algorithm, which can be used as an add-on algorithm for existing
VoF methods, and a dedicated sub-cycling technique. All developed methods were extensively verified and validated before being applied to complex three-dimensional problems.
VoF methods, and a dedicated sub-cycling technique. All developed methods were extensively verified and validated before being applied to complex three-dimensional problems.
Subjects
CFD, unstructured grids, finite volume method
Adjoint Navier-Stokes method
Automatic Grid Adaptation
Goal Oriented Grid Adaptation
free surface
Volume of Fluid Interface Capturing Method
DDC Class
620: Ingenieurwissenschaften
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Name
Dissertation_Manuel_Manzke.pdf
Size
27.55 MB
Format
Adobe PDF