Spallation on Carbon Ablators

Grigat, Felix; Loehle, Stefan; Zander, Fabian; Fasoulas, Stefanos

doi:10.2514/1.j061276

Cited by 5 publications

(1 citation statement)

References 61 publications

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“…The heated sample does not have to be electrically conductive and possesses high electrical resistivity to reach higher surface temperatures. Secondly, the plasma heating can provide surface heating rather than volumetric heating, which allows closer replication of high-temperature physics encountered in flight, such as pyrolysis and spallation [45]. If the total enthalpy of the air plasma is matched with the test flow, the dual-facility preheating experiments with realistic test models become more representative of actual re-entry flight.…”

Section: Challenges Of the Dual-facility Preheatingmentioning

confidence: 99%

Integration of Arc-jet in Impulse Facility for Hypervelocity Aerothermal Testing with Ablation

Chang

Joglekar

McGilvray

et al. 2023

AIAA SCITECH 2023 Forum

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Arc-jets and impulse facilities have been extensively used to investigate the flow physics of planetary re-entry, but they each address different aspects of re-entry flow-fields. This work presents a conceptual design of a dual-facility setup, utilising an arc-jet as a model preheating device in the impulse test facility. This novel preheating apparatus will replicate realistic ablation coupling effects in hypervelocity flows. This paper outlines the major challenges and key considerations for the system integration of arc-jet in the T6 Stalker Tunnel. A small-scale arc-jet facility, OPG1, is currently being developed at the University of Oxford to test the plasma generator, model movement system, and sub-components for the expansion tube testing. Analyses were performed to examine the thermal and structural loads on the model movement system exposed to both plasma and hypervelocity flow. The results showcased that the model movement system will effectively serve dual-facility operations.

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Section: Challenges Of the Dual-facility Preheatingmentioning

confidence: 99%