Large scale, 4-component, settling slurry tests for validation of pipeline friction loss models

0560267 - ÚH 2024 US eng C - Konferenční příspěvek (zahraniční konf.)
Visintainer, R. - McCall II, G. - Sellgren, A. - Matoušek, Václav
Large scale, 4-component, settling slurry tests for validation of pipeline friction loss models.
Proceedings Dredging summit & expo 2022. Bonsall: Western Dredging Association, 2022 - (Hayes, D.; Brome, K.), s. 80-95. ISBN 978-1-7138-6011-2.
[Dredging summit and expo 2022. Houston (US), 25.07.2022-29.07.2022]
Institucionální podpora: RVO:67985874
Klíčová slova: settling slurry * pipeline friction models * pipeline pressure gradient * 4-component model * slurry testing
Obor OECD: Fluids and plasma physics (including surface physics)
https://www.proceedings.com/content/065/065513webtoc.pdf

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.
Trvalý link: https://hdl.handle.net/11104/0333256