0
RESEARCH PAPERS: Additional Technical Papers

Prediction of Turbulent Rough-Wall Skin Friction Using a Discrete Element Approach

[+] Author and Article Information
R. P. Taylor, H. W. Coleman, B. K. Hodge

Mechanical and Nuclear Engineering Department, Mississippi State University, Mississippi State, MS 39762

J. Fluids Eng 107(2), 251-257 (Jun 01, 1985) (7 pages) doi:10.1115/1.3242469 History: Received May 09, 1984; Online October 26, 2009

Abstract

A discrete element model for turbulent flow over rough surfaces has been derived from basic principles. This formulation includes surface roughness form drag and blockage effects as a constituent part of the partial differential equations and does not rely on a single-length-scale concept such as equivalent sandgrain roughness. The roughness model includes the necessary empirical information on the interaction between three-dimensional roughness elements and the flow in a general way which does not require experimental data on each specific surface. This empirical input was determined using data from well-accepted experiments. Predictions using the model are compared with additional data for fully-developed and boundary layer flows. The predictions are shown to compare equally well with both transitionally rough and fully rough turbulent flows without modification of the roughness model.

Copyright © 1985 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

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 Journal Articles
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