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Numerical simulation of the erosion in the 90° elbow

  • Yunzhong Deng
  • , Yinhe Liu
  • , Jianying Chen
  • , Yongjian Zhang
  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations

Abstract

In the process of natural gas transportation, cement production and coal-fired power, the gas-solid two-phase flow exists widely in pipelines. The existence of solid particles may cause the erosion of the pipeline, especially in the elbow of the pipeline. Equations used to predict erosion rate are usually obtained from well-controlled experimental tests for solid particles carried in a gas or liquid flow. The particle impact speed and impact angle affect the erosion process and are two major parameters in most erosion equations. In this paper, the erosion of 90° elbow was studied by using Computational Fluid Dynamics (CFD), Discrete Particle Model (DPM) and erosion equations. The maximum erosion rate and the erosion position were reported. Particle size does not influence the erosion rate when particle size is bigger than a certain degree. When the mass ratio of sand loading to fluid is less than 1, erosion ratio is proportional to the loading mass. The erosion rate is lower for larger radius elbow, and the erosion rate is greatly declined by using the plugged tee instead of an elbow.

Original languageEnglish
Title of host publication7th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion
Pages671-683
Number of pages13
DOIs
StatePublished - 2013
Event7th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, ISMF 2012 - Xi'an, Shaanxi Province, China
Duration: 26 Oct 201230 Oct 2012

Publication series

NameAIP Conference Proceedings
Volume1547
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference7th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, ISMF 2012
Country/TerritoryChina
CityXi'an, Shaanxi Province
Period26/10/1230/10/12

Keywords

  • 90° elbow
  • DPM model
  • Plugged tee
  • erosion
  • particle size distribution

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