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Large scale, 4-component, settling slurry tests for validation of pipeline friction loss models
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SYSNO ASEP 0560267 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Large scale, 4-component, settling slurry tests for validation of pipeline friction loss models Author(s) Visintainer, R. (US)
McCall II, G. (US)
Sellgren, A. (SE)
Matoušek, Václav (UH-J) ORCID, SAI, RIDSource Title Proceedings Dredging summit & expo 2022. - Bonsall : Western Dredging Association, 2022 / Hayes D. F. ; Brome K. - ISBN 978-1-7138-6011-2 Pages s. 80-95 Number of pages 16 s. Publication form Online - E Action Dredging summit and expo 2022 Event date 25.07.2022 - 29.07.2022 VEvent location Houston Country US - United States Event type WRD Language eng - English Country US - United States Keywords settling slurry ; pipeline friction models ; pipeline pressure gradient ; 4-component model ; slurry testing Subject RIV BK - Fluid Dynamics OECD category Fluids and plasma physics (including surface physics) Institutional support UH-J - RVO:67985874 Annotation A 4-component model for settling slurry pipe flow has been previously described by Wilson and Sellgren (2001) to predict pipeline friction loss over a range of slurry compositions: from fine to coarse particle size, narrow to broad particle size distribution, and low to high solids concentration. Further development of the model was undertaken by Visintainer et al. (2017, 2021) based on a comprehensive set of laboratory tests in 203 mm (8 inch) and 103 mm (4 inch) pipelines. The goal of the present work is to validate the applicability of the 4-component model to larger pipeline sizes. To that end, a second comprehensive test program, similar to those previously run, has been carried out in a 489 mm (20 inch) pipe loop. In all, 24 tests were performed with particle sizes ranging from minus 40 microm to 25 mm, d50 particle sizes from minus 40 microm to 11 mm and delivered solids concentrations from 4% to 40% by volume. Particle size distributions varied from very narrow to very broad, with d85/d50 ratios ranging from 1.5 to 320. The resulting data have been compared to the current formulation of the 4-component model in order to assess the applicability of the model for use with larger pipelines. The details of the 4-component model are available online at: http://tinyurl.com/4component. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2024
Number of the records: 1