Abstract
The laminar-turbulent transition of a Mach 4.6 flat-plate boundary layer forced by a wall underexpanded jet is investigated using implicit large-eddy simulation based on a fifth-order weighted essentially nonoscillatory scheme. The boundary-layer edge conditions match those of a -scale hypersonic vehicle forebody at Mach 6 in the T-313 conventional blowdown wind tunnel of the Institute of Theoretical and Applied Mechanics, Russian Academy of Science at Novosibirsk. The effects of injection pressure and jet pulsation on the structure and the stability of the near-injection flow are investigated. Downstream breakdown to turbulence is analyzed through -criterion visualization, mean velocity profiles, and skin friction coefficients. Results show that a low-pressure injection is enough for effective tripping, and that a nonpulsed jet is paradoxically more efficient than a pulsed one.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
