Numerical simulation of silica particle trajectory in flow field and silica particle spheroidizing in oxygen-acetylene flame spheroidization process

被引:8
|
作者
Ji, Zhengjia [1 ]
Jin, Hongyun [1 ,2 ]
Wu, Yaoqing [1 ]
Li, Yunlong [1 ]
Liu, Min [1 ]
Xu, Chunhui [1 ]
Hou, Pan [1 ]
Dong, Jie [1 ]
Hou, Shuen [1 ,2 ]
机构
[1] China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Peoples R China
[2] China Univ Geosci, Minist Educ, Engn Res Ctr Nanogeomat, Wuhan 430074, Peoples R China
关键词
CFD simulation; Oxygen-acetylene flame spheroidization process; Spherical silica; Particle trajectory; SPHERICAL SILICA; POWDER; TEMPERATURE; PERFORMANCE; COMBUSTION; BEHAVIOR;
D O I
10.1016/j.powtec.2015.07.040
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A numerical simulation was developed for particle trajectory in flow field and spheroidizing of silica particle in oxygen-acetylene flame spheroidization process. Gas flow field and silica particle behavior in oxygen-acetylene flame spheroidization process was simulated using a Computational Fluid Dynamics (CFD) package FLUENT. A model was proposed for optimizing spheroidization process of silica particle. Oxygen gas and acetylene gas were used as the continuous phase. Silica particle was used as the dispersed phase. The three-dimensional, steady and isothermal flow field was showed for illustrating the continuous phase and the dispersed phase. Conservation equations of mass and momentum for each phase were solved using the finite volume numerical technique. Various gas conditions were discussed systematically. The injected silica particle trajectories were simulated by using dispersed particle surface trajectory. The trajectories and spheroidizations of different size particles were analyzed. The results of numerical simulation reveal that the flame length was reasonable and overall temperature was highest when acetylene gas flow rate was 10 L . min(-1), oxygen gas flow rate was 20 L . min(-1) and powder carrying gas flow rate was 5 L . min(-1) and 40 pm silica particles were difficult to finish spheroidizing within 5 x 10(-4) s. The comparison shows that temperature distribution, velocity distribution, particle trajectories, and deformation which were predicted by simulation, were in good agreement with the corresponding experimental results. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:451 / 458
页数:8
相关论文
共 50 条
  • [41] Simulation of production of hollow silica particles in a plasma flow. Part 2. Hollow particle production dynamics
    V. A. Arkhipov
    V. D. Goldin
    V. V. Shekhovtsov
    O. G. Volokitin
    A. S. Anshakov
    V. I. Kuzmin
    Thermophysics and Aeromechanics, 2020, 27 : 595 - 605
  • [42] Numerical simulation of particle and bubble detachment process in turbulent flow environment using CFD-DEM
    Huang, Xubei
    Zhang, Zhijun
    PARTICULATE SCIENCE AND TECHNOLOGY, 2024, 42 (05) : 703 - 714
  • [43] Numerical simulation of ball bearing flow field using the moving particle semi-implicit method
    Wu, Wei
    Wei, Chunhui
    Yuan, Shihua
    ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS, 2022, 16 (01) : 215 - 228
  • [44] Numerical simulation of particle erosion in the internal flow field of solid rocket motor nozzle using Rocstar
    Zhou, Wei
    Yin, Yongqi
    Sun, Zhensheng
    Ma, Peiyang
    Shi, Xueqian
    AIP ADVANCES, 2022, 12 (12)
  • [45] Numerical simulation for effect of powder carrier gas on flow field and particle impact velocity in cold spraying
    Tang, Wenyong
    Chen, Qinghua
    Chen, Ziyun
    Zhang, Xueqing
    Chai, Weiwei
    He, Zhiqiang
    Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University, 2012, 46 (07): : 82 - 86
  • [46] Synthesis of Silica Nanoparticles for the Manufacture of Porous Carbon Membrane and Particle Size Analysis by Sedimentation Field-Flow Fractionation
    Lee, Seungho
    Eum, Chul Hun
    Choi, Seongho
    Kim, Woonjung
    BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2016, 37 (11) : 1831 - 1837
  • [47] Numerical Simulation of Particle Impacting on Substrate in Low Temperature and High Velocity Oxygen/Air Fuel Spraying Process
    Zhan, Jun
    Chen, Guiming
    Zhang, Qian
    9TH INTERNATIONAL CONFERENCE ON COMPUTER-AIDED INDUSTRIAL DESIGN & CONCEPTUAL DESIGN, VOLS 1 AND 2, 2008, : 1289 - 1292
  • [48] Numerical simulation of the optical system and medium flow field suitable for particle separation using laser radiation pressure
    Koyanaka, S
    Endoh, S
    ADVANCED POWDER TECHNOLOGY, 2004, 15 (03) : 321 - 336
  • [49] Numerical simulation of motion of a solid particle up-flowing vertically at the liquid flow field inside the tube
    Univ of Petroleum, Dongying, China
    Shiyou Daxue Xuebao, 4 (79-83):
  • [50] Development of Asymmetrical Flow Field Fractionation with On-line Advanced Detections for Particle Size Distribution Analysis of Silica Colloidal Particles
    Gao, Wei
    Cohen, Jamie
    Acholla, Francis
    Su, Wenyu
    RECENT PROGRESS IN SEPARATION OF MACROMOLECULES AND PARTICULATES, 2018, 1281 : 111 - 143