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DLR transonic inverse design code, extensions and modifications to increase versatility and robustness

Streit, Thomas and Hoffrogge, Cornelius (2017) DLR transonic inverse design code, extensions and modifications to increase versatility and robustness. The Aeronautical Journal, 121 (1245), pp. 1733-1757. Cambridge University Press. DOI: 10.1017/aer.2017.101 ISSN 0001-9240

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Official URL: https://www.cambridge.org/core/journals/aeronautical-journal/article/dlr-transonic-inverse-design-code-extensions-and-modifications-to-increase-versatility-and-robustness/8AB1106222D289BCEE073459C300D0D0

Abstract

The DLR inverse design code computes the wing geometry for a prescribed target pressure distribution. It is based on the numerical solution of the integral inverse transonic small perturbation (TSP) equations. In this work, several extensions and modifications of the inverse design code are described. Results are validated with corresponding redesign test cases. The first modification concerns applications for high transonic Mach numbers or cases with strong shocks. The introduced modifications enable converged design solutions for cases where the original method failed. The second modification is the extension of the code to general non-planar wings. Previously, the design code was restricted to non-planar wing designs with small dihedral or to nacelle design. A third modification concerns aerofoil/wings designed for wind-tunnel design. In order to design a swept wing between two wind-tunnel walls, the solution method was extended to two symmetry planes. The introduced extensions and modifications have increased the robustness and range of applicability of the inverse design code.

Item URL in elib:https://elib.dlr.de/121285/
Document Type:Article
Title:DLR transonic inverse design code, extensions and modifications to increase versatility and robustness
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Streit, Thomasth.streit (at) dlr.deUNSPECIFIED
Hoffrogge, Cornelius2st107225 (at) stud.uni-stuttgart.deUNSPECIFIED
Date:November 2017
Journal or Publication Title:The Aeronautical Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:121
DOI :10.1017/aer.2017.101
Page Range:pp. 1733-1757
Editors:
EditorsEmail
Bearmann, Peteraerojournal@aerosociety.com
Publisher:Cambridge University Press
ISSN:0001-9240
Status:Published
Keywords:inverse design method, transonic small Perturbation (TSP), transonic wing design, non-planar wing design, wind tunnel swept wing design
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 for Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Streit, Dr.rer.nat. Thomas
Deposited On:06 Aug 2018 12:21
Last Modified:03 Aug 2019 03:00

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