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UID:69b36e9c49b36
SUMMARY:VKI Free Online Seminar - Spallation of Carbon Ablators in Arcjet F
 acility Experiments
DESCRIPTION:You are invited to attend the free online seminar \"Spallation 
 of Carbon Ablators in Arcjet Facility Experiments\"\, which will be held b
 y Dr Felix Grigat from the University of Stuttgart on Wednesday 11 Decembe
 r at 3:30 PM.
 Abstract:The harsh aerothermal conditions experienced by s
 pacecraft during atmospheric reentries require the use of thermal protecti
 on material. For the extreme heat loads during an extra-orbital reentry ab
 lative materials\, consisting of a porous carbon fiber material infiltrate
 d with phenolic resin\, are the state-of-the-art. During the reentry the m
 aterial reduces the heat load on the spacecraft as the ablator is thermall
 y decomposed through a number of strongly coupled processes like pyrolysis
 \, oxidation and sublimation. Spallation is the mostly undesirable phenome
 non where solid particles are ejected from ablative materials leaving less
  mass to be decomposed at the ablator surface. The exact mechanisms and co
 nditions that promote spallation as well as the extent of it are a matter 
 of ongoing research.Spallation was experimentally investigated at the High
  Enthalpy Flow Diagnostics Group (HEFDiG) with the goal to understand its 
 causes\, its defining characteristics and its effect on the flow field. Th
 e experiments were carried out at the plasma wind tunnels of the Institute
  of Space Systems (IRS) at the University of Stuttgart. This seminar will 
 cover these experimental investigations and the key findings about spallat
 ion.
 Biography:Felix Grigat obtained a Bachelor’s Degree in Mechanical
  Engineering at Braunschweig University of Technology and a Master’s Deg
 ree in Space Science and Technology at Luleå University of Technology and
  Paul-Sabatier University Toulouse. He then completed a PhD at the Univers
 ity of Stuttgart in the field of experimental investigation of atmospheric
  reentries.
 Please check our eligibility criteria before registering.
 
  
LOCATION:Sint-Genesius-Rode\, 1640 Flemish Brabant\, Belgium
DTSTART:20241211T153000Z
DTEND:20241211T170000Z
DTSTAMP:20220307T101637Z
ORGANIZER;CN=VKI Secretariat:MAILTO:secretariat@vki.ac.be
GEO:50.73507;4.396005
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Sint-Genesius-Rode\, 1640 F
 lemish Brabant\, Belgium;X-APPLE-RADIUS=72;X-TITLE=von Karman Institute fo
 r Fluid Dynamics:50.73507;4.396005
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