Three-dimensional Numerical Simulation of Flow Field in a Separator for Sampling the Suspended Sediment

doi:10.15961/j.jsuese.2013.01.008

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Three-dimensional Numerical Simulation of Flow Field in a Separator for Sampling the Suspended Sediment

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- Three-dimensional Numerical Simulation of Flow Field in a Separator for Sampling the Suspended Sediment
- Advanced Engineering Sciences Vol. 45, Issue 1, Pages: 55-60(2013)
- 作者机构：
  
  1. 四川大学建筑与环境学院
  2. 中国科学院成都山地灾害与环境研究所
- 作者简介：
- 基金信息：
- DOI：10.15961/j.jsuese.2013.01.008
  CLC：
- Published：2013，
  
  Published Online：9 November 2012，
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曹植菁,贺秀斌.悬移质泥沙采集分离器内流场的3维数值模拟[J].工程科学与技术,2013,45(1):55-60.

Three-dimensional Numerical Simulation of Flow Field in a Separator for Sampling the Suspended Sediment. [J]. Advanced Engineering Sciences 45(1):55-60(2013)
曹植菁,贺秀斌.悬移质泥沙采集分离器内流场的3维数值模拟[J].工程科学与技术,2013,45(1):55-60. DOI： 10.15961/j.jsuese.2013.01.008.

Three-dimensional Numerical Simulation of Flow Field in a Separator for Sampling the Suspended Sediment. [J]. Advanced Engineering Sciences 45(1):55-60(2013) DOI： 10.15961/j.jsuese.2013.01.008.

摘要

中文摘要: 为高效采集水体中低浓度的悬移质泥沙，通过3维数值模拟设计了具有水力旋流器特征的新型悬移质泥沙采样器。采用拉格朗日法多相流分析模型，3维模拟分析了采样器内部压力分布、流体流动情况和悬移质泥沙颗粒的运动轨迹。室内模拟实验结果表明：该泥沙采集分离器对悬移质泥沙（粒径63 μm）分离效率高达85%以上，可实现悬移质泥沙的快速在线收集浓缩。泥沙分离效率的实测结果与3维数值模拟分析结果吻合（相差2%~8%）。

Abstract

Abstract:In order to efficiently sample the suspended sediment with a low concentration

a three-dimensional simulation design was presented for a new suspended sediment sampler characteristic of a hydrocyclone.Using a Lagrangian approach with fluid multi-phase model

the pressure distribution

fluent flow

and particle trajectory in the inner sampler were three-dimensionally simulated.A laboratory experiment showed that its sediment separation efficiency is up to 85% for the sediment particles with individual grain size of 63 μm

which achieved the rapid in-situ collection of suspended sediment

and the predictions using the three-dimensional simulation are in good agreements with experimental results.

关键词

悬移质泥沙泥沙采样器旋液分离器3维数值模拟

Keywords

suspended sedimentsediment samplerhydrocyclonethree-dimensional numerical simulation

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