CFD Simulations and Wind Tunnel Experiments for Re-usable Launch Vehicles

Jan Vos; Dominique Charbonnier; Ansgar Marwege; Christian Hantz; Ali Gülhan

Published
Conference
2nd International Conference on Flight Vehicles, Aerothermodynamics and Re-entry Missions and Engineering (FAR), Heilbronn, Germany, 19–23 June 2022
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Abstract

In the frame of the RETALT project a large number of CFD simulations and Wind Tunnel experiments were made for both the RETALT1 and RETALT2 configurations to better understand the physics and mechanisms of retro-propulsion at supersonic flow conditions. For RETALT1, it was found in both CFD and Wind Tunnel experiments that the flow structure (bow shock stand-off distance, location of the Mach disk) varies linearly with √(c_T), with c_T the thrust coefficient. However, other flow features, as for example the ratio of nozzle exit pressure with the post-stagnation pressure, show a linear dependence on the c_T. For RETALT2 a hysteresis effect was observed in the Wind Tunnel experiments when varying the incidence angle, and a similar behavior was found in the CFD calculations.

Abstract reproduced via Zenodo. Reused under the source license. Line wrapping and mathematical notation have been normalized against the published abstract; c_T denotes the thrust coefficient.

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Repository DOI
10.5281/zenodo.6759393
BibTeX citation

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@inproceedings{vos2022_cfd_wt,
  author = {Jan Vos and Dominique Charbonnier and Ansgar Marwege and Christian Hantz and Ali Gülhan},
  title = {CFD Simulations and Wind Tunnel Experiments for Re-usable Launch Vehicles},
  booktitle = {FAR2022},
  address = {Heilbronn},
  year = {2022},
  doi = {10.5281/zenodo.6759393},
  url = {https://zenodo.org/records/6759393}
}

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