水科学与工程技术
水科學與工程技術
수과학여공정기술
WATER SCIENCES AND ENGINEERING TECHNOLOGY
2013年
5期
50-53
,共4页
固-液旋流分离器%数学模型%数值模拟%Fluent%RNG k-ε模型
固-液鏇流分離器%數學模型%數值模擬%Fluent%RNG k-ε模型
고-액선류분리기%수학모형%수치모의%Fluent%RNG k-ε모형
Solid-Liquid Hydrocyclone separator%mathematical model%numerical simulation%Fluent%RNG k-εmodel
针对新型固-液旋流分离器实际工作环境，设计了一种新型导流式高效旋流分离器，利用流体力学基本原理，结合T.D哈帝冈柱形旋流分离器模型，建立了新型导流式固液旋流分离器的数学及仿真模型，通过仿真实验获取了新型旋流分离器流场稳定时的进料口速度。运用FLUENT软件，结合欧拉多相流分析法和RNGk-ε湍流模型对其进行数值模拟，得到了流场的压力分布、速度分布、粒子轨迹分布等可视化结果。结果表明，在新型旋流分离器中设计的导流板这一特殊结构能够有效改善循环流，并提高该旋流分离器的分离效率，为旋流分离器取得较好分离效果的工作参数设定提供了技术指导和理论依据。
針對新型固-液鏇流分離器實際工作環境，設計瞭一種新型導流式高效鏇流分離器，利用流體力學基本原理，結閤T.D哈帝岡柱形鏇流分離器模型，建立瞭新型導流式固液鏇流分離器的數學及倣真模型，通過倣真實驗穫取瞭新型鏇流分離器流場穩定時的進料口速度。運用FLUENT軟件，結閤歐拉多相流分析法和RNGk-ε湍流模型對其進行數值模擬，得到瞭流場的壓力分佈、速度分佈、粒子軌跡分佈等可視化結果。結果錶明，在新型鏇流分離器中設計的導流闆這一特殊結構能夠有效改善循環流，併提高該鏇流分離器的分離效率，為鏇流分離器取得較好分離效果的工作參數設定提供瞭技術指導和理論依據。
침대신형고-액선류분리기실제공작배경，설계료일충신형도류식고효선류분리기，이용류체역학기본원리，결합T.D합제강주형선류분리기모형，건립료신형도류식고액선류분리기적수학급방진모형，통과방진실험획취료신형선류분리기류장은정시적진료구속도。운용FLUENT연건，결합구랍다상류분석법화RNGk-ε단류모형대기진행수치모의，득도료류장적압력분포、속도분포、입자궤적분포등가시화결과。결과표명，재신형선류분리기중설계적도류판저일특수결구능구유효개선순배류，병제고해선류분리기적분리효솔，위선류분리기취득교호분리효과적공작삼수설정제공료기술지도화이론의거。
For some problems of the new solid - liquid hydrocyclone in actual operation , designing a new diversion cyclone separator which is of high separation efficiency. By analyzing the principle of the cyclone separator , fluid mechanics fundamental laws combined with cylindrical cyclone separator modeling , establishing mathematical modeling of solid-liquid diversion cyclone separator. Found the speed of the new cyclone separator feed inlet velocity by calculation and simulation, in order to further study the flow field structure of the cyclone separator, applying the FLUENT software combined with Eulerian multiphase analysis and RNG k-ε turbulence modeling to simulate cyclone separator’s flow field. Obtain the visualization result of the flow field pressure distribution , velocity distribution and the particle trajectories distribution. the result shows that the special structure of the deflector designed in the cyclone separator can effectively refine the degradation of circulation flow and improve the separation efficiency of the cyclone separator , provide the technical guidance and theoretical foundation for the cyclone separator can separate diameter of particles is around 5 um and more than that.
