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Journal of Shanghai Jiaotong University (Science)

, Volume 24, Issue 1, pp 107–112 | Cite as

Delayed Detached Eddy Simulation of Subcritical Flow past Generic Side Mirror

  • Xin Chen (陈鑫)
  • Ming Li (李铭)Email author
Article
  • 4 Downloads

Abstract

In the present study, the subcritical flow past a generic side mirror on a base plane is investigated at the Reynolds number of 5.2×105 using delayed detached eddy simulation (DDES) turbulence model. Asides from the capability of capturing main features of the large recirculation vortex in the wake of the side mirror and the front horseshoe vortex, the accuracy of DDES estimation of recirculation length is significantly increased by over 20%, compared to the detached eddy simulation (DES) estimation using the same grid. And DDES prediction of pressure coefficient at the trailing edge of the mirror is in good agreement with the experiments, which is more accurate than both DES and large eddy simulation (LES) results. The results verify the capacity of DDES turbulence model to solve the turbulent flow around the side mirror. This is a key foundation for possible future study of full simulation of external flow field of vehicle.

Key words

delayed detached eddy simulation drag recirculation length generic side mirror 

CLC number

O 355 

Document code

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Notes

Acknowledgement

The authors thank the support by High Performance Computing Center of Automotive Wind Tunnel of Jilin University, China.

References

  1. [1]
    HÖLD R, BRENNEIS A, EBERLE A, et al. Numerical simulation of aeroacoustic sound generated by generic bodies placed on a plate: Part I - Prediction of aeroacoustic sources [C]//5th AIAA/CEAS Aeroacoustics Conference and Exhibit. Bellevue, WA, USA: AIAA, 1999: 1896.Google Scholar
  2. [2]
    SIEGERT R, SCHWARZ V, REICHENBERGER J. Numerical simulation of aeroacustic sound generated by generic bodies placed on a plate: Part II - Prediction of radiated sound pressure [C]//5th AIAA/CEAS Aeroacoustics Conference and Exhibit. Bellevue, WA, USA: AIAA, 1999: 1895.Google Scholar
  3. [3]
    SMITH M, IGLESIAS E L, BREMNER P, et al. Validation tests for flow induced excitation and noise radiation from a car window [C]//18th AIAA/CEAS Aeroacoustics Conference. Colorado Springs, CO, USA: AIAA, 2012: 2201.Google Scholar
  4. [4]
    ASK J, DAVIDSON L. A numerical investigation of the flow past a generic side mirror and its impact on sound generation [J]. Journal of Fluids Engineering, 2009, 131(6): 061102.CrossRefGoogle Scholar
  5. [5]
    AFGAN I, MOULINEC C, LAURENCE D. Numerical simulation of generic side mirror of a car using large eddy simulation with polyhedral meshes [J]. International Journal for Numerical Methods in Fluids, 2008, 56(8): 1107–1113.CrossRefzbMATHGoogle Scholar
  6. [6]
    SPALARTPR, JOUWH, STRELETSM, et al. Comments on the feasibility of LES for wings, and on a hybrid RANS/LES approach [J]. Advances in DNS/LES, 1997(1): 4–8.Google Scholar
  7. [7]
    SPALART P R. Detached-eddy simulation [J]. Annual Review of Fluid Mechanics, 2009, 41: 181–202.CrossRefzbMATHGoogle Scholar
  8. [8]
    SPALARTPR, DECKS, SHURML, et al. A new version of detached-eddy simulation, resistant to ambiguous grid densities [J]. Theoretical and Computational Fluid Dynamics, 2006, 20(3): 181–195.CrossRefGoogle Scholar
  9. [9]
    MENTER F R, KUNTZ M, LANGTRY R. Ten years of industrial experience with the SST turbulence model [C]//4th International Symposium on Turbulence, Heat and Mass Transfer. Antalya, Turkey: Begell House, 2003: 625–632.Google Scholar
  10. [10]
    GRITSKEVICH M S, GARBARUK A V, SCHÜTZE J, et al. Development of DDES and IDDES formulations for the k-ω shear stress transport model [J]. Flow, Turbulence and Combustion, 2012, 88(3): 431–449.CrossRefzbMATHGoogle Scholar
  11. [11]
    RUNG T, ESCHRICHT D, YAN J P, et al. Sound radiation of the vortex flow past a generic side mirror [C]//8th AIAA/CEAS Aeroacoustics Conference and Exhibit. Breckenridge, CO, USA: AIAA, 2002: 2549.Google Scholar
  12. [12]
    WANG Y P, GU Z Q, LI W P, et al. Evaluation of aerodynamic noise generation by a generic side mirror [J]. World Academy of Science, Engineering and Technology, 2010, 4(1): 120–127.Google Scholar
  13. [13]
    CARO S, COTONI V, SHORTER P, et al. Turbulent surface pressure field in low speed flow [M]//CIAPPI E, DE ROSA S, FRANCO F, et al. Flinovia-Flow induced noise and vibration issues and aspects. Switzerland: Springer International Publishing, 2015: 91–100.Google Scholar
  14. [14]
    ASK J, DAVIDSON L. The sub-critical flow past a generic side mirror and its impact on sound generation and propagation [C]//12th AIAA/CEAS Aeroacoustics Conference. Cambridge, MA, USA: AIAA, 2006: 2558.Google Scholar
  15. [15]
    MENTER F R. Zonal two equation k-ω turbulence models for aerodynamic flows [C]//23rd Fluid Dynamics, Plasmadynamics, and Lasers Conference. Orlando, FL, USA: AIAA, 1993: 2906.Google Scholar
  16. [16]
    SCHWAMBORN D, STRELETS M. ATAAC – An EU-project dedicated to hybrid RANS/LES methods [M]// FU S, HAASE W, PENG S H, et al. Progress in hybrid RANS-LES modelling. Berlin: Springer, 2012: 59–75.CrossRefGoogle Scholar
  17. [17]
    REVELL A, CRAFT T, LAURENCE D. Turbulence modelling of strongly detached unsteady flows: The circular cylinder [M]//PENG S H, HAASE W. Advances in hybrid RANS-LES modelling. Berlin: Springer, 2008: 279–288.CrossRefGoogle Scholar
  18. [18]
    ZHANG K, KATSUCHI H, ZHOU D, et al. Numerical study on the effect of shape modification to the flow around circular cylinders [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2016, 152: 23–40.CrossRefGoogle Scholar
  19. [19]
    WANG L, HU R Y, LI L Y, et al. Detached-eddy simulation of flow past a backward-facing step with a harmonic actuation [C]//29th Congress of the International Council of the Aeronautical Sciences. Saint Petersburg, Russia: ICAS, 2014.Google Scholar
  20. [20]
    POLETTO R, REVELL A, CRAFT T, et al. Embedded DDES of 2D hump flow [M]//FU S, HAASE W, PENG S H, et al. Progress in hybrid RANS-LES modelling. Berlin: Springer, 2012: 169–179.CrossRefGoogle Scholar

Copyright information

© Shanghai Jiaotong University and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Automotive Simulation and ControlJilin UniversityChangchunChina

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