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Simulation of an Ablative Thermal Protection System for the Hypersonic Ascend of an Electromagnetically Launched Payload Carrier

Lancelle, Daniel and Bozic, Ognjan (2013) Simulation of an Ablative Thermal Protection System for the Hypersonic Ascend of an Electromagnetically Launched Payload Carrier. 5th European Conference for Aeronautics and Space Sciences (EUCASS) 2013, 01.-05. Jul. 2013, München, Deutschland.

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Abstract

The German Aerospace Center is carrying out a study to develop a small payload carrier for the ascent to low earth orbit. The vehicle shall be electromagnetically launched by a Lorentz Rail Accelerator. Additionally, it will be propelled by a two stage hybrid rocket engine system to reach the desired orbit. Due to the high initial velocity of about 3.3 km/s at sea level, the vehicle needs a thermal protection system to withstand the aerothermodynamic loads on its forebody. An ablative carbon phenolic heat shield is chosen for this application. There are many investigations regarding carbon phenolic ablators, but usually these investigations are carried out for re-entry missions, where the high velocities are given at high altitude and low atmospheric density, in contrast to this application. A material response model is developed and coupled to a 6 degree of freedom trajectory simulation tool, which incorporates an aerodynamic and atmospheric model. The results show that despite the high convective heat loads, an ablator of 15 mm thickness at the stagnation region is sufficient to protect the vehicle against the harsh conditions.

Item URL in elib:https://elib.dlr.de/85560/
Document Type:Conference or Workshop Item (Speech)
Title:Simulation of an Ablative Thermal Protection System for the Hypersonic Ascend of an Electromagnetically Launched Payload Carrier
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lancelle, Danieldaniel.lancelle (at) dlr.deUNSPECIFIED
Bozic, Ognjanognjan.bozic (at) dlr.deUNSPECIFIED
Date:5 July 2013
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Ablation, Hitzeschutz
Event Title:5th European Conference for Aeronautics and Space Sciences (EUCASS) 2013
Event Location:München, Deutschland
Event Type:international Conference
Event Dates:01.-05. Jul. 2013
Organizer:EUCASS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Vorhaben AHRES (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Lancelle, Daniel
Deposited On:25 Nov 2013 10:46
Last Modified:31 Jul 2019 19:43

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