Abstract
Numerical flow simulations of a supersonic reattaching shear layer over a ramp-cavity are conducted using RANS and two hybrid RANS/LES turbulence models. The hybrid models are based on the detached eddy simulation (DES) framework, the SST-IDDES model and a new proposed model called the TNT-IsDDES model. The effects of various numerical aspects and model parameters are investigated. Advanced sub-grid length scales, known as the shear layer adapted (SLA) length and the least square (LSQ) length, are examined and compared to the traditional cubic root sub-grid length scale. An unequivocal advantage of these advanced sub-grid length scales is demonstrated. Overall, the results show that hybrid RANS/LES models, compared to conventional RANS turbulence models, significantly improve flow predictions.
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.
