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A Robust hp-Adaptation Method for Di...

Ceze, Marco Antonio de Barros.

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A Robust hp-Adaptation Method for Discontinuous Galerkin Discretizations Applied to Aerodynamic Flows.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	A Robust hp-Adaptation Method for Discontinuous Galerkin Discretizations Applied to Aerodynamic Flows./
Author:	Ceze, Marco Antonio de Barros.
Description:	148 p.
Notes:	Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.
Contained By:	Dissertation Abstracts International74-10B(E).
Subject:	Engineering, Aerospace. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3566180
ISBN:	9781303170614

A Robust hp-Adaptation Method for Discontinuous Galerkin Discretizations Applied to Aerodynamic Flows.
Ceze, Marco Antonio de Barros.

A Robust hp-Adaptation Method for Discontinuous Galerkin Discretizations Applied to Aerodynamic Flows. - 148 p.

Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.

Thesis (Ph.D.)--University of Michigan, 2013.

Quantitatively accurate results from realistic Computational Fluid Dynamics (CFD) simulations are often accompanied by high computational expense. Higher-order methods are good candidates for providing accurate solutions at reduced cost. However, these methods are still not robust for industrial applications.

ISBN: 9781303170614Subjects--Topical Terms:

1018395
Engineering, Aerospace.

A Robust hp-Adaptation Method for Discontinuous Galerkin Discretizations Applied to Aerodynamic Flows.
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020 $a 9781303170614
035 $a (MiAaPQ)AAI3566180
035 $a AAI3566180
040 $a MiAaPQ $c MiAaPQ
100 1 $a Ceze, Marco Antonio de Barros. $3 2093896
245 1 2 $a A Robust hp-Adaptation Method for Discontinuous Galerkin Discretizations Applied to Aerodynamic Flows.
300 $a 148 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.
500 $a Adviser: Krzysztof J. Fidkowski.
502 $a Thesis (Ph.D.)--University of Michigan, 2013.
520 $a Quantitatively accurate results from realistic Computational Fluid Dynamics (CFD) simulations are often accompanied by high computational expense. Higher-order methods are good candidates for providing accurate solutions at reduced cost. However, these methods are still not robust for industrial applications.
520 $a This thesis presents a solution advancement method that improves robustness of discontinuous Galerkin (DG) discretizations in the iteration to steady-state. The method includes physical realizability constraints in the solution path and provides the solver with the ability of circumventing non-physical regions of the solution space that can occur during the solution transient.
520 $a Affordable accurate solutions for challenging problems are obtained via output-based hp-adaptation. The adaptation method proposed in this thesis directly targets output error by locally choosing between subdividing an element or raising the approximation order. The decision is made by finding the refinement option that maximizes a merit function that involves output sensitivity and computational cost. Results in two and three dimensions show savings of up to an order of magnitude in terms of number of degrees of freedom and at least a factor of two in terms of computational time when compared to uniform refinement.
590 $a School code: 0127.
650 4 $a Engineering, Aerospace. $3 1018395
650 4 $a Applied Mathematics. $3 1669109
650 4 $a Computer Science. $3 626642
690 $a 0538
690 $a 0364
690 $a 0984
710 2 $a University of Michigan. $b Aerospace Engineering. $3 2093897
773 0 $t Dissertation Abstracts International $g 74-10B(E).
790 $a 0127
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3566180