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http://dx.doi.org/10.12652/Ksce.2015.35.5.1083

Experiment Study on Mixing Efficiency of Material for Improving Reclamation Soil Quality in Dredging Soil Pipeline using CFD  

Park, Byongjun (Korea Rural Community Corporation)
Kang, Byungyoon (Korea Rural Community Corporation)
Chung, Minchul (Korea Rural Community Corporation)
Shin, Jaeryul (Nextfoam Co., Ltd.)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.35, no.5, 2015 , pp. 1083-1096 More about this Journal
Abstract
This study utilised Computational Fluid Dynamics(CFD) for preliminary assessment of mixing efficiencies of 2-phase fluids in a pipe at which a slurry flow and an injected solidifier join, for the purposes of reducing trial-and-error-based instances of physical experiments and conducting the overall research in an economical way. Using OpenFOAM$^{(R)}$, we simulated behavior of 3-phase fluids under 18 different settings generated by changing diameters of a dredged soil transportation pipe, a quality improving material injection pipe and the confluence angle. While difference in mixing efficiencies amongst the instances was insignificant, discernible boundary layers amongst the materials were observed in all of the instances. In order to break the boundary layers, we designed a substructure inside a pipe and found out that it could remarkably improve mixing efficiencies particularly for short distance applications.
Keywords
Dredging; Reclamation; Mixing in the dredging pipe; Mixture ratio;
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