elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

DLR TRANSONIC INVERSE DESIGN CODE, EXTENSIONS AND MODIFICATIONS TO INCREASE VERSATILITY AND ROBUSTNESS

Streit, Thomas and Hoffrogge, Cornelius (2016) DLR TRANSONIC INVERSE DESIGN CODE, EXTENSIONS AND MODIFICATIONS TO INCREASE VERSATILITY AND ROBUSTNESS. RAeS 2016 Appllied Aerodynamics Conference, 18-21 Jul. 2016, Bristol, United Kingdom.

Full text not available from this repository.

Abstract

In recent years the DLR inverse design code has often been used to design wings for transonic transport aircraft. 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. New applications and configurations have shown limitations and possibilities of extension of the inverse design code. In this work we present several extensions and modifications of the inverse design code. The first modification concerns applications for high transonic Mach numbers or cases with strong shocks. The introduced modifications allow to obtain converged design solutions for cases were 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 airfoil/wings designed for wind tunnel design. In order to design a swept wing between two wind tunnel walls the solution method of the inverse TSP equations was extended to two symmetry planes. The introduced extensions and modifications have increased the robustness and range of applicability of the inverse design code. The required modifications in the numerical solution method of the TSP equation are described and results are validated with corresponding redesign test cases.

Item URL in elib:https://elib.dlr.de/109663/
Document Type:Conference or Workshop Item (Speech)
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:20 July 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:inverse design method, transonic small perturbation (TSP), transonic wing design, nonplanar wing design, wind tunnel swept wing design
Event Title:RAeS 2016 Appllied Aerodynamics Conference
Event Location:Bristol, United Kingdom
Event Type:international Conference
Event Dates:18-21 Jul. 2016
Organizer:Royal Aeronautical Society
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 > Transport Aircraft
Deposited By: Streit, Dr.rer.nat. Thomas
Deposited On:19 Dec 2016 13:18
Last Modified:19 Dec 2016 13:18

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.