Particle-impingement simulations for a hypersonic flow over a blunt cone

V. Russo, S. M.A. Al Hasnine, C. Brehm

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations


The laminar to turbulent transition process in hypersonic boundary layer flows is strongly affected by external parameters, such as the freestream environment. The transition process significantly affects heat transfer rates and understanding this process is vital for the design of hypersonic vehicles. This research focuses on the first stage of many in the highly-complex multi-stage transition process, namely the receptivity stage. Recent studies have shown that for sufficiently large particles and a high enough particle concentration particle-induced transition may provide a viable path to turbulence. While prior research on particle induced transition was mainly concerned with the excitation of modal disturbances inside the boundary layer this work investigates if particles can induce non-modal growth. The geometry and flow conditions were chosen in accordance to the work by Paredes et al.,35 who observed non-modal growth for the chosen setup. Direct numerical simulations were performed with an established adaptive mesh refinement wave-packet tracking simulation approach which allows to efficiently track the disturbance flow field. The flow structures generated by the particle impingement show close similarities to those which have been observed in prior theoretical work.

Original languageEnglish
Title of host publicationAIAA Scitech 2021 Forum
Number of pages13
StatePublished - 2021
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online
Duration: Jan 11 2021Jan 15 2021

Publication series

NameAIAA Scitech 2021 Forum


ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
CityVirtual, Online

Bibliographical note

Publisher Copyright:
© 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

ASJC Scopus subject areas

  • Aerospace Engineering


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