- Author
-
Swaffield, J. A.
- Title
- Application of Method of Characteristics to Model the Transport of Discrete Solids in Partially-Filled Pipe Flow. Final Report.
- Coporate
- National Bureau of Standards, Washington, DC
Brunel Univ., Uxbridge, UK
- Sponsor
- Department of Housing and Urban Development, Washington, DC
- Report
-
NBS BSS 139
February 1982
- Distribution
- Available from National Technical Information Service
- Keywords
-
pipe flow; solids flow; unsteady flows;
- Identifiers
- solids transport; method of characteristics; transcd computer program
- Abstract
- The flow depth and velocity changes across a moving solid in partially-filled pipe flow are predicted by means of the application of the method of characteristics to solve the unsteady flow equations. Simplified force models are presented which, when used in conjunction with empirical relationships linking leakage flow past the solid to upstream specific energy, are sufficient to provide the required moving solid boundary conditions that allow solid velocity prediction. A wide range of simulated transport conditions are presented that confirms the applicability of this technique as a basis for the future evaluation of more complex body force models.