Modeling of Active Flow Control in an Aggressive Diffuser with Comparison to Experiment
ORAL
Abstract
This computational work explores active flow control for separation mitigation in an asymmetric, aggressive diffuser of rectangular cross-section at inlet Mach ∼ 0.4 and Re ∼ 1.3M. Unsteady tangential blowing is used to control separation on the single ramped face. Different methods of modeling the unsteady jet are evaluated, and the corresponding Spalart-Allmaras DDES and RANS simulations are compared to experimental PIV and pressure data.
*Funding was provided by Northrop Grumman Corporation. Ryan Skinner's research was conducted with Government support under contract FA9550-11-C-0028 and awarded by the Department of Defense, Air Force office of Scientific Research, National Defense Science and Engineering Graduate (NDSEG) Fellowship, 32 CFR 168a. Kenneth Jansen was also supported by NSF (CBET) 1710670. This research used resources of the Argonne Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC02-06CH11357.
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Presenters
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Ryan Skinner
- Univ of Colorado - Boulder