1 / 25

Task 4.1 objectives Partners involved and allocated efforts

VAL idation and I mprovement of A irframe N oise prediction T ools (ACP8-GA-2009-233680) WP 4 – Improvements of Numerical CAA Approaches Task 4.1 – Improvements of source modelling Compiled by: M.Shur, M.Strelets (NTS). Task 4.1 objectives Partners involved and allocated efforts

ariane
Download Presentation

Task 4.1 objectives Partners involved and allocated efforts

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. VALidation and Improvement of Airframe Noise prediction Tools(ACP8-GA-2009-233680)WP 4 – Improvements of Numerical CAA ApproachesTask 4.1 – Improvements of source modelling Compiled by:M.Shur, M.Strelets (NTS)

  2. Task 4.1 objectives Partners involved and allocated efforts Main directions of work (according to DoW) Overview of partners’ contributions OUTLINE

  3. Task Objectives • GeneralWP-4 objective: Development of improved simulation • approaches and enhanced algorithms for AFN prediction • Within envisioned avenues of improvements identified in VALIANT DoW • Based on the weak points of the state-of-the-art tools discovered by Partners in the course of WP3 • In particular, Task 4.1 deals with improvements in the area of • Turbulent Noise Source Modelling • These include both: • Approaches to turbulence simulation (Sub-Task 4.1.1) • Higher order schemes (Sub-Task 4.1.2)

  4. Partners and Allocated Efforts • All “numerical teams”, except for LMS (8 Partners), are involved • Green – Provided • Red – Not provided • Deliverables: • D21 – Intermediate report (month 21 – May 2011) • D31 – Final report (month 30 – February 2012)

  5. Main Directions of Partners’ Work (DoW) • VKI • Extension of steady higher order space discretization Residual Distribution Schemes developed by VKI earlier on time-dependent computations on unstructured grids, to cope with CAA problems • IMM • Enhancement of in-house codes by implementation of: • Kinetically consistent formulations of turbulence-resolving approaches (better representation of near-wall turbulence) • Higher-order approximations on unstructured grids • TUB • Improvement of hybrid RANS-LES approaches implemented in in-house code • “DDES-type” methods – reducing inaccuracies associated with the so-called “grey area” (may be important for gap turbulence interaction test case) • “WMLES-type methods” – removing minor “log-layer mismatch” predicted by the IDDES within the code

  6. Main Directions of Work - 2 • ONERA • Development of improved methods of creating turbulent fluctuations at the upstream boundary of LES domain within 2-stage RANS-NLDE approach (important for wing-flap test case) • Techniques will be based on Synthetic Eddy Method of Jarrin et al.: expected to produce more realistic turbulence since it allows to reproduce both 1st- and 2nd-order moments • NTS • Work on same issue, in the framework of Embedded IDDES • Enhancement of earlier developed turbulence-recycling procedure • Development of new efficient generator of “synthetic turbulence” at RANS-LES interface (more flexible and user-friendly than recycling) • DLR • Extending of stochastic approach to noise generation to the case of mean flows supporting self-sustained large-scale oscillations (important for slat-wing and gap turbulence test cases)

  7. Main Directions of Work – 3 • CIMNE • Extension of SGS-modelling developed by CIMNE earlier for stabilization of the FE formulations to simulation of turbulence • NUMECA • Validation of promising techniques of acceleration of LES-based computations on broadband noise prediction problems • Extension of capabilities of LEE solver for acoustic propagation based on high order Discontinuous Galerkin formulation

  8. OVERVIEW of Partners Contributions • VKI • IMM • TUB • ONERA • DLR • CIMNE • NTS • NUMECA

  9. Summary of VKI Contribution (1/2) “Title if applicable”, authors

  10. Summary of VKI Contribution (2/2)

  11. Summary of IMM Contribution (1/2) “Title if applicable”, authors

  12. Summary of IMM Contribution (2/2)

  13. Summary of TUB Contribution (1/2) “Title if applicable”, authors

  14. Summary of TUB Contribution (2/2)

  15. Summary of ONERA Contribution (1/2) “Title if applicable”, authors

  16. Summary of ONERA Contribution (2/2)

  17. Summary of DLR Contribution (1/2) “Title if applicable”, authors

  18. Summary of DLR Contribution (2/2)

  19. Summary of CIMNE Contribution (1/2) “Title if applicable”, authors

  20. Summary of CIMNE Contribution (2/2)

  21. Summary of NTS Contribution (1/2) “Title if applicable”, authors

  22. Summary of NTS Contribution (2/2)

  23. Summary of NUMECA Contribution (1/2) “Title if applicable”, authors

  24. Summary of NUMECA Contribution (2/2)

  25. Concluding Remarks

More Related