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Indexed by:
Article
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First Author:
Na Zhu
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Co-author:
Tao Wu,Pingfang Hu,Zhenyu Luo
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Journal:
J. Huazhong Univ. of Sci. & Tech. (Natural Science Edition)
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Affiliation of Author(s):
Huazhong University of Science and Technology
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Place of Publication:
China
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Discipline:
Engineering
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First-Level Discipline:
Civil Engineering
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Document Type:
J
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Volume:
10
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Page Number:
77-82
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ISSN No.:
1671-4512
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Key Words:
ice slurry；ice packing fraction；flow in pipe；critical velocity；ice blockage
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CN No.:
42-1658/N
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DOI number:
10.13245/j.hust.221011
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Date of Publication:
2022-06-17
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Impact Factor:
0.998
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Abstract:
The working principle of supercooled water method for preparing ice slurry was combined with multiphase flow Euler model and interphase heat and mass transfer model，and Fluent software was used to simulate the flow of ice slurry in ice slurry outlet
pipeline under nonadiabatic conditions．The pipe model included horizontal straight pipe and 90° elbow．In the range of 1%~10% of the initial ice packing fraction，combined with two kinds of judgment basis of ice blockage in pipe，the influence of parameters such as ice particle size，pipe diameter，pipe length and curvature radius on the two critical velocities were studied．Results show that the influence of ice particle size and straight pipe length is strong，and the two critical velocities exhibit a significant upward trend，especially on the critical velocity I．The influence of pipe diameter is weak，the two critical flow velocities exhibit a tiny growth trend，and the growth rate tends to be flat，with a variation range of 0.02~0.07 m/s．Bend curvature has a little effect on critical velocities，and the two critical velocities exhibit a slight downward trend，with a variation range of 0.01~0.03 m/s．
