Wave Phenomena in a High Reynolds Number Compressible Boundary Layer

Bayliss, A.; Maestrello, L.; Parikh, Paresh; Turkel, Eli

doi:10.1007/978-1-4612-4724-1_10

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…Probably the first transition simulation for supersonic boundary layers, although restricted to two-dimensional yet spatially evolving disturbances, was by Bayliss et al (1985), who employed an approach analogous to that by Fasel (1976) for incompressible boundary layers. The first three-dimensional temporal DNS for flat-plate highspeed boundary-layer transition was performed by Erlebacher & Hussaini (1990).…”

Section: Numerical Investigationsmentioning

confidence: 99%

Numerical Simulation of Transition in Hypersonic Boundary Layers

Fasel¹,

Groß²,

Koevary³

et al. 2011

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The public reportmg burd en for th1s collection of mform ation is estimated to average 1 hour per response. includmg the tim e for rev>ewing instruct>ons. searclhing exi sting data so urces. gathering and mmnta1mng the data needed . and co mpleting and rev1ew 1 ng the collection of 1nforma t1 on. Send co mments regarding th1s burden est1m ate or any other aspect o fth1s collection of mformat1on . 1nclud1 ng suggesti ons for reduc1 ng the burden. to the Department of De fense. ExecutiV e Serv1ce D>rectorate (0704 -0 188) Respo ndents should be aware that notwithstanding any other prov1 s1 on of law. no person shall be sub;ect to any penalty for falling to comply w1th a collect> on of 1 nform at1on if 1 t does not display a currently v alid OMB co ntrol number PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ORGANIZATION. 1. REPORT DATE (DD-MM-YYYY)12. REPORT TYPE 3. DATES COVERED (From-To) SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR'S ACRONYM(S)Air Force Office of Scientific Research, AFOSR/RSA 4015 Wilson Blvd., Room 713, Arlington, VA 22203 SPONSOR/MONITOR'S REPORT NUMBER(S)AFRL-OSR-VA-TR-2012-0255 DISTRIBUTION/AVAILABILITY STATEMENTA -Approved For Public Release; Distribution is Unlimited. SUPPLEMENTARY NOTES ABSTRACTThe laminar-turbulent transition process in supersonic and hypersonic boillldary layers was investigated using spatial and temporal Direct Numerical Simulations (DNS). Our previous research indicated that oblique breakdown might be a highly relevant nonlinear mechanism for supersonic boillldary layers. However, a nonlinear mechanism would only be relevant for the transition process if this mechanism can lead to fully developed turbulence. Hence, to address this question, the late nonlinear transition regime of a supersonic flat-plate boillldary layer at Mach 3 was studied using spatial DNS. These simulations demonstrated that a fully turbulent flow can develop via oblique breakdown. We also investigated the nonlinear disturbance development in a hypersonic bolUldary layer on a sharp circular cone at Mach 8 using spatial and temporal DNS. It was confirmed in these simulations that fimdamental resonance and oblique breakdown are the viable paths to transition in hypersonic boillldary layers. 1S. SUBJECT TERMS

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Section: Numerical Investigationsmentioning

confidence: 99%