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Extrapolating Aero Data from a Demonstrator to an Operational Vehicle

Longo, J.M.A. and Lüdeke, H. and Kordulla, W. and Molina, R. (2005) Extrapolating Aero Data from a Demonstrator to an Operational Vehicle. In: 4th International Symposium Atmospheric Reentry Vehicles & Systems Proceedings. 4th International Symposium Atmospheric Reentry Vehicles & Systems, [2005-03-21 - 2005-03-23], Arcachon, Frankreich.

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Abstract

The study presents a numerical investigation for the SPHYNX re-entry vehicle performed by DLR under ESA contract. The current aero- and aero- thermodynamic study is carried out based on the solutions of the stationary Navier-Stokes equations. Several flow conditions derived from the flight trajectory are considered, in particular the portion comprised from 85 Km to 60 Km altitudes, i.e. Mach numbers from 28 to 14. All Navier-Stokes simulations are carried out for chemical non-equilibrium under laminar conditions. Fully and partially catalytic wall conditions are considered. The numerical solutions are assessed by grid convergence analysis and comparing the present data with available results for the X-38 vehicle. The study provides first positive evidences about the possibility to use an existing aerodynamic and/or aero-thermodynamic database to design a downsized or upsized vehicle which shall fly a different re-entry trajectory. Thus a verification of the applicability of X38 aerodynamic and aerothermodynamic databases is highlighted.

Document Type:Conference or Workshop Item (Paper)
Title:Extrapolating Aero Data from a Demonstrator to an Operational Vehicle
Authors:
AuthorsInstitution or Email of Authors
Longo, J.M.A.UNSPECIFIED
Lüdeke, H.UNSPECIFIED
Kordulla, W.ESA - ESTEC
Molina, R.ESA - ESTEC
Date:20 February 2005
Journal or Publication Title:4th International Symposium Atmospheric Reentry Vehicles & Systems Proceedings
Refereed publication:No
In ISI Web of Science:No
Editors:
EditorsEmail
AAAF, UNSPECIFIED
Status:Published
Keywords:Hypersonics, Re-entry, Extrapolation, Forces, Heat Fluxes
Event Title:4th International Symposium Atmospheric Reentry Vehicles & Systems
Event Location:Arcachon, Frankreich
Event Type:international Conference
Event Dates:[2005-03-21 - 2005-03-23]
Organizer:AAAF (Association Aéronautique et Astronautique de France)
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - numerische Verfahren (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Dr.-Ing. Jose Maria Longo
Deposited On:23 Jan 2006
Last Modified:12 Dec 2013 20:09

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