Full Content is available to subscribers

Subscribe/Learn More  >

Effects of Surfactant Additives on Flow Characteristics at Different Wall-Normal Locations in Turbulent Channel Flow

[+] Author Affiliations
Lu Wang, Ping-An Liu

Harbin Engineering University, Harbin, China

Zhi-Ying Zheng, Yue Wang, Wei-Hua Cai, Feng-Chen Li

Harbin Institute of Technology, Harbin, China

Paper No. FEDSM2016-7653, pp. V01BT14A009; 8 pages
  • ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels
  • Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics
  • Washington, DC, USA, July 10–14, 2016
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5029-9
  • Copyright © 2016 by ASME


Large eddy simulation (LES) was performed for turbulent channel flow with and without surfactant additives at Reτ = 590. Since turbulent channel flow can be divided into linear substrate layer, buffer layer, logarithm layer and outer layer along the wall-normal direction, so study on the flow properties at different layers in turbulent channel flow of viscoelastic fluid is significant for investigating turbulent drag-reducing mechanism and realizing the control of turbulent drag-reducing flow in the future. In this present work, the influences of surfactant additives on flow properties at different y locations were analyzed by researching the mean streamwise velocity, the root-mean-square velocity fluctuations, Reynolds shear stress and the contributions of different parts to turbulent kinetic energy, as well as the scaling law for four layers by two-dimensional wavelet transform. From the viewpoint of the above results, it is showed that the buffer layer tends to get wider in viscoelastic fluid and it is also demonstrated that viscoelastic effect mainly inhibits the coherent structures in the buffer layer, which are ejected from the linear substrate layer.

Copyright © 2016 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In