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Visualization and assessment of turbulent coherent structures in laminarescent boundary layers

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Abstract

Direct numerical simulation (DNS) with high spatial/temporal resolution of spatially developing turbulent boundary layers subject to very strong favorable pressure gradient (FPG) has been performed. The sudden acceleration imposed on the flow provokes a significant attenuation of turbulent intensities (Araya et al. in J Fluid Mech 775:189–200, 2015), particularly due to the dominance of pressure forces over approximately frozen Reynolds stresses, Narasimha and Sreenivasan (Adv Appl Mech 19:221–309, 1979). In this article, visualization of the DNS velocity field is carried out in order to evaluate the effect of very strong FPG on elementary coherent structures, such as low- and high-speed streaks, sweeps and ejections, quasi-streamwise and horseshoe vortices, and large-scale motions. An important symbiosis between quasi-streamwise vortices and low-speed streaks (or regeneration cycle) has been observed in the FPG zone. The destabilizing shear layers upstream of vortex heads in strong accelerated flows appear as very thin zones developing in the buffer region (\(20<y^+< 30\)). It seems that decaying \(uv'\) in strong FPG flows (Araya et al. 2015) is principally due to the annihilation of sweeps, while ejections are responsible for the turbulence residual.

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References

  • Adrian RJ (2007) Hairpin vortex organization in wall turbulence. Phys Fluids 19:041301

    Article  MATH  Google Scholar 

  • Adrian RJ, Liu ZC (2002) Observation of vortex packets in direct numerical simulation of fully turbulent channel flow. J Vis 5:9–19

    Article  Google Scholar 

  • Adrian RJ, Meinhart CD, Tomkins CD (2000) Vortex organisation in the outer region of the turbulent boundary layer. J Fluid Mech 422:1–54

    Article  MathSciNet  MATH  Google Scholar 

  • Araya G, Castillo C, Hussain F (2015) The log behaviour of the Reynolds shear stress in accelerating turbulent boundary layers. J Fluid Mech 775:189–200

    Article  MathSciNet  Google Scholar 

  • Araya G, Castillo L, Meneveau C, Jansen K (2011) A dynamic multi-scale approach for turbulent inflow boundary conditions in spatially evolving flows. J Fluid Mech 670:518–605

    Article  MATH  Google Scholar 

  • Balakumar BJ, Adrian R (2007) Large- and very-large-scale motions in channel and boundary layer flows. Philos Trans R Soc A 365:665–681

    Article  MATH  Google Scholar 

  • Brown G, Roshko A (1974) On density effects and large structure in turbulent mixing layer. J Fluid Mech 64:775–816

    Article  Google Scholar 

  • Cantwell B (1981) Organized motion in turbulent flow. Ann Rev Fluid Mech 13:457–515

    Article  Google Scholar 

  • Dennis DJC (2015) Coherent structures in wall-bounded turbulence. Anais da Academia Brasileira de Ciencias 87:1161–1193 06

    Article  Google Scholar 

  • Falco RE (1977) Coherent motions in the outer region of turbulent boundary layers. Phys Fluids 20:124–132

    Article  Google Scholar 

  • Guala M, Hommema SE, Adrian RJ (2006) Large-scale and very-large-scale motions in turbulent pipe flow. J Fluid Mech 554:521–542

    Article  MATH  Google Scholar 

  • Head MR, Bandyopadhyay P (1981) New aspects of turbulent boundary-layer structure. J Fluid Mech 107:297–338

    Article  Google Scholar 

  • Hutchins N, Marusic I (2007) Large-scale influences in near-wall turbulence. Philos Trans R Soc 365:647–664

    Article  MATH  Google Scholar 

  • Hutchins N, Marusic I (2007) Evidence of very long meandering features in the logarithmic region of turbulent boundary layers. J Fluid Mech 579:1–28

    Article  MATH  Google Scholar 

  • Jeong J, Hussain F (1995) On the identification of a vortex. J Fluid Mech 285:69–94 2

    Article  MathSciNet  MATH  Google Scholar 

  • Jimenez J, Pinelli A (1999) The autonomous cycle of near-wall turbulence. J Fluid Mech 389:335–359

    Article  MathSciNet  MATH  Google Scholar 

  • Kays WM, Crawford ME (1952) The structure of turbulent shear flow. Cambridge University Press, Cambridge

    Google Scholar 

  • Kim HT, Kline SJ, Reynolds WC (1971) The production of turbulence near a smooth wall in a turbulent boundary layer. J Fluid Mech 50:133–160

    Article  Google Scholar 

  • Kline SJ, Reynolds WC, Schraub FA, Runstadler PW (1967) The structure of turbulent boundary layers. J Fluid Mech 30:741–773

    Article  Google Scholar 

  • Launder BE (1964) Laminarization of the turbulent boundary layer by acceleration, Rept No 77. Gas Turbine Lab., MIT., Cambridge

  • Lund TS, Wu X, Squires KD (1998) Generation of turbulent inflow data for spatially-developing boundary layer simulations. J Comput Phys 140(2):233–258

    Article  MathSciNet  MATH  Google Scholar 

  • Narasimha R, Sreenivasan KR (1973) Relaminarization in highly accelerated turbulent boundary layers. J Fluid Mech 61:417–447

    Article  Google Scholar 

  • Narasimha R, Sreenivasan KR (1979) Relaminarization of fluid flows. Adv Appl Mech 19:221–309

    Article  Google Scholar 

  • Patel VC (1965) Calibration of the Preston tube and limitation on its use in pressure gradients. J Fluid Mech 23:185–208

    Article  Google Scholar 

  • Runstadler PW, Kline SJ, Reynolds WC (1963) An experimental investigation of the flow structure of the turbulent boundary layer. Report MD-8, Department of Mechanical Engineering, Stanford University, Stanford

  • Smith CR (1984) A synthesized model of the near-wall behavior in turbulent boundary layers. In: International proceedings of 8th symposium turbulence, University of Missouri-Rolla

  • Smith CR, Metzler SP (1983) The characteristics of low-speed streaks in the near-wall region of a turbulent boundary layer. J Fluid Mech 129:27–54

    Article  Google Scholar 

  • Smith CR, Schwartz SP (1983) Observation of streamwise rotation in the near-wall region of a turbulent boundary layer. Phys Fluids 26:641–652

    Article  Google Scholar 

  • Smith CR, Schwartz SP (1997) On a self-sustaining process in shear flows. Phys Fluids 9:883–900

    Article  Google Scholar 

  • Spalart PR (1986) Numerical study of sink-flow boundary layers. J Fluid Mech 172:307–328

    Article  MATH  Google Scholar 

  • Sreenivasan KR (1982) Laminarescent, relaminarizing and retransitional flows. Acta Mech 44:1–48

    Article  MATH  Google Scholar 

  • Theodorsen T (1952) Mechanism of turbulence. In: Proceedings of 2nd Midwestern conference on fluid mechanics, Ohio State University, Columbia, OH, vol 729, pp 603–637

  • Winant CD, Browand FK (1974) Vortex pairing: the mechanism of turbulent mixing-layer growth at moderate Reynolds number. J Fluid Mech 63:237–255 4

    Article  Google Scholar 

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Acknowledgements

Puerto Rico Louis Stokes Alliance for Minority Program. AFOSR Grant FA9550-17-1-0051. NSF-CBET Grant \(\#\)1512393. XSEDE computational allocation \(\#\)TG-CTS170006.

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Authors and Affiliations

  1. High Performance Computing and Visualization Laboratory, Department of Mechanical Engineering, University of Puerto Rico, Mayaguez, PR, 00681, USA

    G. Araya & D. Rodriguez

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  1. G. Araya
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  2. D. Rodriguez
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Correspondence to G. Araya.

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Araya, G., Rodriguez, D. Visualization and assessment of turbulent coherent structures in laminarescent boundary layers. J Vis 21, 191–202 (2018). https://doi.org/10.1007/s12650-017-0460-4

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  • DOI: https://doi.org/10.1007/s12650-017-0460-4

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