POF Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Physics of Fluids / Volume 22 / Issue 8 / ARTICLES / Turbulent Flows

Phys. Fluids 22, 085105 (2010); http://dx.doi.org/10.1063/1.3475816 (8 pages)

Transitional and turbulent boundary layer with heat transfer

Xiaohua Wu1 and Parviz Moin2

1Department of Mechanical Engineering, Royal Military College of Canada, Kingston, Ontario K7K 7B4, Canada
2Center for Turbulence Research, Stanford University, Stanford, California 94305-3030, USA

View MapView Map

(Received 22 January 2010; accepted 15 April 2010; published online 26 August 2010)

We report on our direct numerical simulation of an incompressible, nominally zero-pressure-gradient flat-plate boundary layer from momentum thickness Reynolds number 80–1950. Heat transfer between the constant-temperature solid surface and the free-stream is also simulated with molecular Prandtl number Pr = 1. Skin-friction coefficient and other boundary layer parameters follow the Blasius solutions prior to the onset of turbulent spots. Throughout the entire flat-plate, the ratio of Stanton number and skin-friction St/Cf deviates from the exact Reynolds analogy value of 0.5 by less than 1.5%. Mean velocity and Reynolds stresses agree with experimental data over an extended turbulent region downstream of transition. Normalized rms wall-pressure fluctuation increases gradually with the streamwise growth of the turbulent boundary layer. Wall shear stress fluctuation, τw,rms′+, on the other hand, remains constant at approximately 0.44 over the range, 800<Reθ<1900. Turbulent Prandtl number Prt peaks at around 1.9 at the wall, and decreases monotonically toward the boundary layer edge with no near-wall secondary peak, in good agreement with previous boundary layer heat transfer experiments. In the transitional region, turbulent spots are tightly packed with numerous hairpin vortices. With the advection and merging of turbulent spots, these young isolated hairpin forests develop into the downstream turbulent region. Isosurfaces of temperature up to Reθ = 1900 are found to display well-resolved signatures of hairpin vortices, which indicates the persistence of the hairpin forests.

© 2010 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. COMPUTATIONAL AND PHYSICAL PARAMETERS
  3. BOUNDARY LAYER STATISTICS
  4. VISUALIZATIONS
  5. CONCLUSIONS

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

boundary layer turbulence, flow simulation, heat transfer, plates (structures), vortices

PACS

  • 47.11.-j

    Computational methods in fluid dynamics

  • 47.27.nb

    Boundary layer turbulence

  • 47.27.te

    Turbulent convective heat transfer

  • 47.32.-y

    Vortex dynamics; rotating fluids

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3475816

PUBLICATION DATA

ISSN

1070-6631 (print)  
1089-7666 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    P. Schlatter, R. Örlü, Q. Li, G. Brethouwer, J. H. M. Fransson, A. V. Johansson, P. H. Alfredsson, and D. S. Henningson, “Turbulent boundary layers up to Retheta=2500 studied through simulation and experiment,” Phys. Fluids 21, 051702 (2009)PHFLE6000021000005051702000001.

    H. Kong, H. Choi, and J. S. Lee, “Direct numerical simulation of turbulent thermal boundary layers,” Phys. Fluids 12, 2555 (2000)PHFLE6000012000010002555000001.

    L. P. Purtell, P. S. Klebanoff, and F. T. Buckley, “Turbulent boundary layer at low Reynolds number,” Phys. Fluids 24, 802 (1981)PFLDAS000024000005000802000001.


For access to citing articles, you need to log in.


Figures (13)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Transitional and turbulent boundary layer with heat transfer
  2. Analysis of flame acceleration induced by wall friction in open tubes
  3. Investigation of vortex shedding behind a porous square cylinder using lattice Boltzmann method
  4. Twenty years of experimental and direct numerical simulation access to the velocity gradient tensor: What have we learned about turbulence?
  5. Nonmodal and nonlinear dynamics of a volatile liquid film flowing over a locally heated surface
Go to AIP Home
Copyright © American Institute of Physics
close