UPWARD FLOW OF LARGE SIZE PARTICLES-WATER MIXTURES THROUGH SWAYING PIPES

Calculation of the hydraulic gradient due to the upward flow of a large size particles-water mixture in a swaying vertical pipe is a central problem in the design of systems for deep-sea mining of manganese modules. This paper investigates the problem experimentally and with a mathematical model. An experimental apparatus that mimics the deep-sea mining system was built to study the effects of swaying on the hydraulic gradient. The experimental results reveal that the hydraulic gradient in a swaying vertical pipe is greater than in a fixed vertical pipe (for the same flow and solid-loading conditions) as a result of the instantaneous particle-wall collisions and the solids sliding over the pipe wall. A mathematical model for the mixture flows is suggested based on a Lagrangian simulation technique. The model results offer additional insight into the dynamics of this complex flow and agree well with the new lab data.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Xia, J X
  • Ni, J R
  • Mendoza, C
• Publication Date: 2004-7

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 535-543
• Serial:
  • Journal of Transportation Engineering
  • Volume: 130
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Hydraulic gradient; Hydrogeology; Hydrologic phenomena; Manganese nodules; Mining engineering; Pipe flow; Pipelines by product carried; Water transportation
• Uncontrolled Terms: Swaying pipes
• Subject Areas: Highways; Hydraulics and Hydrology; Marine Transportation; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 00976464
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 13 2004 12:00AM