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Solution of Incompressible Flows Using Compressible Flow Solvers

de Bortoli, A.L. (1994) Solution of Incompressible Flows Using Compressible Flow Solvers. DLR-Interner Bericht. 129-94/18, 86 S.

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Abstract

Today, numerical flow simulation plays more and more an important role in the design process of an aircraft. It is already possible to simulate the flow over a complete aircraft geometry for specific flow regimes. The interest now is to develop methodologies that can be used to solve all speed flow problems. As the use of such methodologies is sometimes limited, these limitations must be investigated in order to reduce the design costs. This work presents an extension of the SNAS2D Code (structured Navier-Stokes 2D - DLR), based on a code-centered arrangement, to solve incompressible inviscid flow problems. For this purpose a pressure correction procedure and a preconditioning technique are investigated and compared. Additionally, acceleration techniques like local time stepping, residual smoothing and multigrid are used for improved efficiency of the solution procedure.

Document Type:Monograph (DLR-Interner Bericht)
Additional Information: LIDO-Berichtsjahr=1994,
Title:Solution of Incompressible Flows Using Compressible Flow Solvers
Authors:
AuthorsInstitution or Email of Authors
de Bortoli, A.L.UNSPECIFIED
Date:1994
Number of Pages:86
Status:Published
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L TG - Querschnittstechnologien
DLR - Research theme (Project):L - Systems & Cabin
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:05

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