Aeroelastic Prediction Workshop Summary
Workshop details for the 3rd Aeroelastic Prediction Workshop's high-speed working group on July 21, 2022, including information on the organizers, experiments, participants, tools used, and workshop program. The workshop aims to address aeroelastic challenges in the aerospace industry through collaborative efforts.
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3rdAeroElastic Prediction Workshop High-Speed Working Group July 21, 2022 Organizer: Eric L. Blades, ATA Engineering RC-19 Experiment: Kirk R. Brouwer, AFRL SSC HyMAX Experiment: Krishna M. Talluru / Andrew J. Neely, UNSW-Canberra
Open Agenda Administrative Announcements and questions Questions regarding workshop cases Intended to be a working meeting
Administrative Confirm workshop participants and tools plan to use Please provide codes plan to use RC-19 HyMAX 0 Wedge 0 Wedge 4 Wedge 2 Wedge 10 Wedge Shock Impingement Transitional Flow (Optional) X X Oscillating Wedge (2 - 10 ) Shock Impingement Transitional Flow (Optional) X X No Shock Impingement Periodic Response (Baseline) X X X X X No Shock Impingement Chaotic Response (Optional) X X X X Shock Impingement Periodic Response (Baseline) X X X X X Shock Impingement Laminar Flow (Baseline) X X X X X Organization ATA Engineering HPCMP CREATE Duke University Technion NASA LaRC POC Eric Blades Steven Lamberson Kestrel + SierraSD Earl Dowell Lior Poplingher Robert Bartels Code / Toolset Code / Toolset Loci/CHEM + Abaqus Loci/CHEM + linearFSI Kestrel + SierraSD X X X HYPATE Cradle CFD/scFLOW+MSC.Nastran Daning Huang Yuya Ando HYPATE Cradle CFD/scFLOW+MSC.Nastran Penn State X X X X X Seeking volunteers to provide progress updates for future meetings
Workshop Programmatics Scheduled weekend before SciTech (Jan 21-22) SciTech is Jan 23-27 at National Harbor, MD No plans to provide virtual access to the workshop since hybrid approach hasn t been very effective in the past Plan is to present all 4 working groups in serial Allow participants to see results from other WGs Presentations Current plan is 10-15 minutes for each participant (may vary depending on number of participants) Organizing committee will provide overview of cases for each WG so individual participants can just focus on presenting their results
Progress Updates RC-19 Kestrel Team noticed numerical precision issue with nozzle definition Some compression waves physically present due to nozzle Updated data package available on AePW3 site HyMAX CAD is available Contact Eric Blades for the CAD Krishna to provide time-varying inflow conditions Encountered any issues to share with WG? Questions?
RC-19 Question / Discussion Using plenum conditions of P0 = 345 kPa, T0 = 295 K, Mach in test section is > 1.9 Confirm duct geometry is a 2D duct Ben Smarslock/AFRL confirmed duct geometry Mach Number 1.9 < M < 2.2
RC-19 Question / Discussion Technion: Rigid CFD results Inflow plane defined downstream of throat Set uniform inflow conditions to M = 1.92 Shock impingement location is too far downstream relative to the AFRL RANS results Similar observation in ATA s results Modeling C-D nozzle Mach Number 1.9 < M < 2.3
HyMAX Questions / Discussion Figure 11 For the natural frequency estimates in AIAA J, were those based on the 30 ms of data shown in the figure or the entire 200 ms time history? In figure 6 of the AIAA J, there seems to be a shift in the mean value in the pressure transducer response starting at about 120 ms. Any thoughts as to why this is occurring? How quickly does the flow return to quiescent conditions after the 200 ms test? Figure 6
Next Steps Details for both experiments available at AePW3 website https://nescacademy.nasa.gov/workshops/AePW3/public/wg/highspeed Monthly telecon slides posted as well Post-processing scripts also provided for to aid comparisons and ensure consistency of results Collective AePW group meetings 1st Thursday of each month (currently on bi-monthly schedule) Next meeting is August 8th, 2022 @ 10:00 AM CT Please share with colleagues to increase participation
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