Abstract
The objective of this research is to study the evolution of coherent structures in the late transitional boundary layer. A DNS (direct numerical simulation) of compressive fluid flow at Mach 0.5 on a flat plate, with only TS waves as input in the inlet (without additional asymmetric perturbations such as suction and blowing at wall boundary) is conducted to investigate nonlinear growth of the large vortex structures in the late transitional boundary. The mechanisms of the development of asymmetric coherent structures in the boundary layer are studied in detail. The evolution of the asymmetrical vortex structures and their role on the further randomization of the boundary layer are also investigated. It is found that the growth of streamwise asymmetric perturbations in the boundary layer influences the formation and development on the asymmetrical vortex structures and the boundary layer loses its symmetrical distribution in spanwise direction immediately after the asymmetric vortex structures is formed in the flow.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
F.R. Hama, Boundary-layer transition induced by a vibrating ribbon on a flat plate, in Proceedings of the 1960 Heat Transfer and Fluid Mechanics Institute (Stanford University Press, Palo Alto, CA, 1960), pp. 92–105
F.R. Hama, J. Nutant, Detailed flow-field observations in the transition process in a thick boundary layer, in Proceedings of the 1960 Heat Transfer and Fluid Mechanics Institute (Stanford University Press, Palo Alto, CA, 1963), pp. 77–93
C. Liu, Z. Liu, Multigrid mapping and box relaxation for simulation of the whole process of flow transition in 3-D boundary layers. J. Comput. Phys. 119, 325–341 (1995)
C. Liu, Z. Liu, Direct numerical simulation for flow transition around airfoils, in Proceedings of First AFOSR International Conference on DNS/LES, Louisiana Tech University, Ruston, Louisiana, August 4–8 (1997)
Z. Liu, G. Xiong, C. Liu, Direct numerical simulation for the whole process of transition on 3-Dairfoils. AIAA paper, AIAA 96-2081
C. Liu, L. Chen, P. Lu, X. Liu, Study on multiple ring-like vortex formation and small vortex generation in late flow transition on a flat plate. Theoret. Numer. Fluid Dynam. 27, 41–70 (2010s)
Y. Yan, C. Liu. Shear Layer Stability Analysis in Boundary Layer Transition and MVG Controlled Ramp Flow. AIAA paper, 2013-0531, 2013
Y. Yan, C. Chen, H. Fu, C. Liu, DNS Study on λ-Vortex and Vortex Ring Formation in Flow Transition at Mach Number 0.5. J. Turbul. 15(1), 1–21 (2014)
C. Liu, Y. Yan, P. Lu, Physics of turbulence generation and sustenance in a boundary layer. Comput. Fluids 102, 353–384 (2014) 2014
Y. Yan, C. Chen, H. Fu, C. Liu, DNS Study on Lambda Vortex and Vortex Ring Formation by Vortex Filaments in Flow Transition. AIAA paper, 2013-0996
Y. Yan, J. Tang, C. Liu, F.D.N.S. Yang, Study on the formation of lambda rotational core and the role of TS wave in boundary layer transition. J. Turbul. 17(6), 572–601 (2016)
D.G.W. Meyer, U. Rist, S. Wagner, Direct numerical simulation of the development of asymmetric perturbations at very late stages of the transition process, in Recent Results in Laminar-Turbulent Transition. Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM), ed. by S. Wagner, M. Kloker, U. Rist, vol. 86 (Springer, Berlin, Heidelberg, 2004)
Y. Wang, Y. Gao, H. Xu, X. Dong, J. Liu, W. Xu, M. Chen, C. Liu, Liutex theoretical system and six core elements of vortex identification. J. Hydrodyn. 32, 197–221 (2020)
H. Guo, V.I. Borodulin, Y.S. Kachanov, J.J. Wang, Q.X. Lian, C. Pan, et al., Nature of sweep and ejection events in transitional and turbulent boundary layers. J. Turbul. 11, 1468–5248 (2010)
S. Bake, D. Meyer, U. Rist, Turbulence mechanism in Klebanoff transition:a quantitative comparison of experiment and direct numerial simulation. J. Fluid Mech. 459, 217–243 (2002)
Acknowledgments
This research is part of the Blue Waters sustained-petascale computing project, which is supported by the National Science Foundation (awards OCI-0725070 and ACI-1238993) the State of Illinois, and as of December 2019, the National Geospatial-Intelligence Agency. Blue Waters is a joint effort of the University of Illinois at Urbana-Champaign and its National Center for Supercomputing Applications. This work was funded in part by the National Science Foundation’s Implementation Grant # 1912191.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Yan, Y., Yang, Y., Chen, C., Wang, N. (2021). Study on the Formation and Evolution of Asymmetrical Vortex Structures in the Late Transitional Boundary Layer. In: Liu, C., Wang, Y. (eds) Liutex and Third Generation of Vortex Definition and Identification. Springer, Cham. https://doi.org/10.1007/978-3-030-70217-5_15
Download citation
DOI: https://doi.org/10.1007/978-3-030-70217-5_15
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-70216-8
Online ISBN: 978-3-030-70217-5
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)