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Comparison of NACA 0012 Laminar Flow Solutions: Structured and Unstructured Grid Methods

Swanson, Charles R. and Langer, Stefan (2016) Comparison of NACA 0012 Laminar Flow Solutions: Structured and Unstructured Grid Methods. Other. NASA/TM–2016–219003.

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Abstract

In this paper we consider the solution of the compressible Navier-Stokes equations for a class of laminar airfoil flows. The principal objective of this paper is to demonstrate that members of this class of laminar flows have steady-state solutions. These laminar airfoil flow cases are often used to evaluate accuracy, stability and convergence of numerical solution algorithms for the Navier-Stokes equations. In recent years, such flows have also been used as test cases for high-order numerical schemes. While generally consistent steady-state solutions have been obtained for these flows using higher order schemes, a number of results have been published with various solutions, including unsteady ones. We demonstrate with two different numerical methods and a range of meshes with a maximum density that exceeds 8 × 10^6 grid points that steady-state solutions are obtained. Furthermore, numerical evidence is presented that even when solving the equations with an unsteady algorithm, one obtains steady-state solutions.

Item URL in elib:https://elib.dlr.de/107282/
Document Type:Monograph (Other)
Title:Comparison of NACA 0012 Laminar Flow Solutions: Structured and Unstructured Grid Methods
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Swanson, Charles R.NASA, Langley Research Center, Hampton, VA, USAUNSPECIFIED
Langer, Stefanstefan.langer (at) dlr.deUNSPECIFIED
Date:January 2016
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:NASA TECHNICAL MEMORANDUM
Status:Published
Keywords:NACA 0012, Laminar flow, Structured and Unstructured Grid code
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Deposited By: Langer, Dr.rer.nat. Stefan
Deposited On:07 Nov 2016 10:48
Last Modified:07 Nov 2016 10:48

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