Scipediacontent: Scipediacontent moved page Draft Content 561309883 to 238,295pp

2021-03-23T03:32:25Z

Scipediacontent moved page Draft Content 561309883 to 238,295pp

Scipediacontent: Created page with " == Abstract == three-dimensional backfill pipeline transport model is developed using the computational fluid dynamics (CFD) technique, which is applied to study the pipeli..."

2021-03-23T03:30:31Z

Created page with " == Abstract == three-dimensional backfill pipeline transport model is developed using the computational fluid dynamics (CFD) technique, which is applied to study the pipeli..."

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== Abstract ==

three-dimensional backfill pipeline transport model is developed using the computational fluid dynamics (CFD) technique, which is applied to study the pipeline transport properties of three-phase foam slurry backfill (TFSB). Based on rheological property tests and CFD simulations, the foam phase, pressure, and velocity in the pipeline system are investigated using the CFD mixture method for different bubble volume fractions and bubble diameters. The simulation results indicate that TFSB can maintain a steady state during pipeline transport, experience a markedly reduced pipeline transport resistance, and exhibit better liquidity than conventional cement slurry. Furthermore, as the bubble volume fraction increases, the resistance of the pipeline decreases and the fluidity improves. By contrast, the bubble diameter has little effect on the transport properties of TFSB. The combined results of CFD simulations, slump tests, and strength tests indicate that, when the bubble volume fraction is 15–20 vol %, TFSB can satisfy the necessary strength requirements and exhibit self-flowing transport. The CFD technique provides an intuitive and accurate basis for pipeline transport research and has the potential for wider application in studies of mine backfill.

Document type: Article

== Full document ==
<pdf>Media:Draft_Content_561309883-beopen1432-9511-document.pdf</pdf>

== Original document ==

The different versions of the original document can be found in:

* [https://www.mdpi.com/2075-163X/7/8/149/pdf https://www.mdpi.com/2075-163X/7/8/149/pdf] under the license https://creativecommons.org/licenses/by

* [http://www.mdpi.com/2075-163X/7/8/149/pdf http://www.mdpi.com/2075-163X/7/8/149/pdf],
: [http://dx.doi.org/10.3390/min7080149 http://dx.doi.org/10.3390/min7080149] under the license cc-by

* [https://www.mdpi.com/2075-163X/7/8/149 https://www.mdpi.com/2075-163X/7/8/149],
: [https://academic.microsoft.com/#/detail/2747187817 https://academic.microsoft.com/#/detail/2747187817] under the license https://creativecommons.org/licenses/by/4.0/

* [https://www.mdpi.com/2075-163X/7/8/149 https://www.mdpi.com/2075-163X/7/8/149],
: [https://doaj.org/toc/2075-163X https://doaj.org/toc/2075-163X]

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Scipediacontent: Scipediacontent moved page Draft Content 561309883 to 238,295pp

Scipediacontent: Created page with " == Abstract == three-dimensional backfill pipeline transport model is developed using the computational fluid dynamics (CFD) technique, which is applied to study the pipeli..."