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Title: Evaluation of Computational Method of High Reynolds Number Slurry Flow for Caverns Backfilling

Abstract

The abandonment of salt caverns used for brining or product storage poses a significant environmental and economic risk. Risk mitigation can in part be address ed by the process of backfilling which can improve the cavern geomechanical stability and reduce the risk o f fluid loss to the environment. This study evaluate s a currently available computational tool , Barracuda, to simulate such process es as slurry flow at high Reynolds number with high particle loading . Using Barracuda software, a parametric sequence of simu lations evaluated slurry flow at Re ynolds number up to 15000 and loading up to 25%. Li mitations come into the long time required to run these simulation s due in particular to the mesh size requirement at the jet nozzle. This study has found that slurry - jet width and centerline velocities are functions of Re ynold s number and volume fractio n The solid phase was found to spread less than the water - phase with a spreading rate smaller than 1 , dependent on the volume fraction. Particle size distribution does seem to have a large influence on the jet flow development. This study constitutes a first step to understand the behaviormore » of highly loaded slurries and their ultimate application to cavern backfilling.« less

Authors:
 [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1179537
Report Number(s):
SAND2015-3571
583702
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English

Citation Formats

Bettin, Giorgia. Evaluation of Computational Method of High Reynolds Number Slurry Flow for Caverns Backfilling. United States: N. p., 2015. Web. doi:10.2172/1179537.
Bettin, Giorgia. Evaluation of Computational Method of High Reynolds Number Slurry Flow for Caverns Backfilling. United States. doi:10.2172/1179537.
Bettin, Giorgia. Fri . "Evaluation of Computational Method of High Reynolds Number Slurry Flow for Caverns Backfilling". United States. doi:10.2172/1179537. https://www.osti.gov/servlets/purl/1179537.
@article{osti_1179537,
title = {Evaluation of Computational Method of High Reynolds Number Slurry Flow for Caverns Backfilling},
author = {Bettin, Giorgia},
abstractNote = {The abandonment of salt caverns used for brining or product storage poses a significant environmental and economic risk. Risk mitigation can in part be address ed by the process of backfilling which can improve the cavern geomechanical stability and reduce the risk o f fluid loss to the environment. This study evaluate s a currently available computational tool , Barracuda, to simulate such process es as slurry flow at high Reynolds number with high particle loading . Using Barracuda software, a parametric sequence of simu lations evaluated slurry flow at Re ynolds number up to 15000 and loading up to 25%. Li mitations come into the long time required to run these simulation s due in particular to the mesh size requirement at the jet nozzle. This study has found that slurry - jet width and centerline velocities are functions of Re ynold s number and volume fractio n The solid phase was found to spread less than the water - phase with a spreading rate smaller than 1 , dependent on the volume fraction. Particle size distribution does seem to have a large influence on the jet flow development. This study constitutes a first step to understand the behavior of highly loaded slurries and their ultimate application to cavern backfilling.},
doi = {10.2172/1179537},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {5}
}

Technical Report:

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