Advertisement

Experimental/Numerical Study of Turbulent Wake in Adverse Pressure Gradient

  • E. Guseva
  • M. Shur
  • M. StreletsEmail author
  • A. Travin
  • W. Breitenstein
  • R. Radespiel
  • P. Scholz
  • M. Burnazzi
  • T. Knopp
Conference paper
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 143)

Abstract

The paper presents a bilateral German-Russian project launched in 2017 and aimed at investigation of turbulent wakes in the presence of Adverse Pressure Gradient (APG). Such wakes are a common feature of high-lift wing flows near the maximum lift conditions (take-off and landing), when the wake of the main wing is subjected to APG created by flaps. This type of flow is known to be poorly predicted by available RANS models. Hence, an ultimate goal of the project is their improvement based on a detailed experimental dataset and on results of high-fidelity turbulence resolving simulations providing relevant second moment closure terms not accessible by measurements. After a brief overview of the experimental and numerical parts of the project, the paper focuses on the first zonal RANS-IDDES computations of a wake of the flat plate in APG created by a plane diffuser. These computations performed in the initial stage of the project (before obtaining experimental data) are aimed at evaluating the capability of this approach to ensure the required accuracy with reasonable computational resources. Results of the simulations conducted on 3 grids (18, 30, and 50 million cells) support the credibility of the approach and suggest that it ensures not only virtually grid-independent prediction of the mean flow characteristics of the wake but also the dissipation-rate which is a key quantity in the context of improvement of the Reynolds Stress Transport RANS models. This is achieved, despite a relatively large grid step in the wake region (about 75 Kolmogorov length scales), thanks to computing this quantity based on the balance of the separate terms of the Reynolds stress transport equations.

Keywords

Turbulent wake Adverse pressure gradient Experimental study Numerical simulation Zonal RANS-LES approach 

Notes

Acknowledgements

The present work was funded by DFG and RBRF (Grants No. RA 595/26-1, No. KN 888/3-1, and No. 17-58-12002). Computations were performed with the use of resources of the Supercomputer Center “Polytechnichesky”.

References

  1. 1.
    Roos, F.W.: Experimental studies of wake retardation in a simulated high-lift-system flow field. AIAA Paper, AIAA-1997-1813 (1997)Google Scholar
  2. 2.
    Shur, M.L., Spalart, P.R., Strelets, MKh, Travin, A.K.: A hybrid RANS-LES approach with delayed-DES and wall-modelled LES capabilities. Int. J. Heat Fluid Flow 29, 1638–1649 (2008)CrossRefGoogle Scholar
  3. 3.
    Shur, M., Strelets, M., Travin, A.: Acoustically adapted versions of STG. Notes Num. Fluid Mech. Multidiscip. Des. 134, 62–69 (2018)Google Scholar
  4. 4.
    Hoffenberg, R., Sullivan, J.P.: Measurement and simulation of wake deceleration. AIAA Paper, AIAA-1998-0522 (1998)Google Scholar
  5. 5.
    Tummers, M.J., Passchier, D.M., Bakker, P.G.: Experiments on the turbulent wake of a flat plate in a strong adverse pressure gradient. Int. J. Heat Fluid Flow 28, 145–160 (2007)CrossRefGoogle Scholar
  6. 6.
    Driver, D.M., Mateer, G.G.: Wake flow in adverse pressure gradient. Int. J. Heat Fluid Flow 23, 564–571 (2002)CrossRefGoogle Scholar
  7. 7.
    Liu, X., Thomas, F.O., Nelson, R.C.: An experimental investigation of the planar turbulent wake in constant pressure gradient. Phys. Fluids 14(8), 2817–2838 (2002)CrossRefGoogle Scholar
  8. 8.
    Menter, F.R.: Zonal two-equation k-ω turbulence models for aerodynamic flows. AIAA-Paper, AIAA-1993-2906 (1993)Google Scholar
  9. 9.
    Dejoan, A., Leschziner, M.A.: Large eddy simulation of a plane turbulent wall jet. Phys. Fluids 17, 025102 (2005)CrossRefGoogle Scholar
  10. 10.
    Shur, M., Strelets, M., Travin, A.: High-order implicit multi-block Navier-Stokes code: ten-years experience of application to RANS/DES/LES/DNS of turbulent flows. https://cfd.spbstu.ru//agarbaruk/doc/NTS_code.pdf (2004)
  11. 11.
    Rogers, S.E., Kwak, D.: An upwind differencing scheme for the time accurate incompressible Navier-Stokes equations. AIAA Paper, AIAA 88–2583 (1988)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • E. Guseva
    • 1
  • M. Shur
    • 1
  • M. Strelets
    • 1
    Email author
  • A. Travin
    • 1
  • W. Breitenstein
    • 2
  • R. Radespiel
    • 2
  • P. Scholz
    • 2
  • M. Burnazzi
    • 3
  • T. Knopp
    • 3
  1. 1.Peter the Great Saint-Petersburg Polytechnic UniversitySaint PetersburgRussia
  2. 2.Technische Universität BraunschweigBrunswickGermany
  3. 3.DLR, Center for Computer Applications in Aero-Space Science and EngineeringGöttingenGermany

Personalised recommendations