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Experimental Study on Static and Dynamic Stability of a Blunt Body Configuration

Gawehn, Thomas and Gülhan, Ali (2019) Experimental Study on Static and Dynamic Stability of a Blunt Body Configuration. International Conference on Flight Vehicles, Aerothermodynamics and Re-entry Missions & Engineering (FAR 2019), 30 Sept. - 3 Oct., Monopoli, Italy.

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Abstract

The aero shape of ESA’s Intermediate eXperimental Vehicle (IXV) is prone to suffer from stability problems in the transonic regime. To avoid a supersonic descent system, small fins are implemented to the shape with the aim of passing the transonic flight regime at angles of incidence below 40° and improve static stability conditions in subsonic with a lift-to-drag ratio higher than 1. The fin shape is optimised in a numerical pre-study and two new configurations are investigated experimentally in the Trisonic Wind tunnel TMK of DLR Köln. Static and dynamic aerodynamic coefficients are determined between Ma=0.5 and 2.0 and implemented in an AEDB. The configurations’ performance is compared to that of the original IXV aero shape. It can be stated, that implementation of the fins significantly improved the longitudinal static and dynamic stability of the aero shape. The authors therefore recommend further investigations on the new configurations.

Item URL in elib:https://elib.dlr.de/129437/
Document Type:Conference or Workshop Item (Speech)
Title:Experimental Study on Static and Dynamic Stability of a Blunt Body Configuration
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Gawehn, ThomasThomas.Gawehn (at) dlr.dehttps://orcid.org/0000-0003-1628-0062
Gülhan, AliAli.Guelhan (at) dlr.deUNSPECIFIED
Date:2 October 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Blunt body aerodynamics static and dynamic stability wind tunnel testing IXV aero shape
Event Title:International Conference on Flight Vehicles, Aerothermodynamics and Re-entry Missions & Engineering (FAR 2019)
Event Location:Monopoli, Italy
Event Type:international Conference
Event Dates:30 Sept. - 3 Oct.
Organizer:ESA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Anlagen u. Messtechnik (old), R - Raumfahrzeugsysteme - Rückkehrtechnologie (old)
Location: Braunschweig , Göttingen , Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonoc and Hypersonic Technology
Deposited By: Gawehn, Dr.-Ing. Thomas
Deposited On:23 Oct 2019 12:52
Last Modified:26 Mar 2020 11:08

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