STRATIFICATION AND OPEN CHANNEL FLOW

The effect of density stratification on the vertical velocity profile in turbulent open channel flow is examined. Using the Monin-Obukov length scale and Prandtl mixing length theory, equations reflective of the effect of stratification are derived, and the theory is extended to estimate values of the bottom boundary friction factor. Laboratory data are used to confirm the basic hypotheses. The results indicate that density stratification can significantly modify the shape of the vertical velocity profile and the value of the friction factor. /Author/

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • French, R H
• Publication Date: 1978-1

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 21-31
• Serial:
  • Journal of the Hydraulics Division
  • Volume: 104
  • Issue Number: HY1
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Channel flow; Density; Friction factor; Hydraulics; Mathematical analysis; Stratification; Velocity
• Uncontrolled Terms: Open channel flow
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00173234
• Record Type: Publication
• Report/Paper Numbers: ASCE 13458 Proceeding
• Files: TRIS
• Created Date: Apr 12 1978 12:00AM