CAJ | 학술논문

运用计算流体力学（ CFD）软件对新型直管式旋桨反应器进行流场模拟。用Gambit建立三维实体模型，采用多重参考系法（ MRF）和标准κ-ε双方程模型对反应器内液相流场进行模拟，运用Tecplot对计算结果进行后处理。结果表明：计算所选模型能较准确地模拟反应器内的流场分布，反应器内最大流速和湍动能分布在桨叶端部附近，流体的整体流动趋势以环流为主，有利于不同区域内物料的均匀混合；相比于单一桨叶反应器，该多组合桨叶反应器能提供更大范围的紊动流场。在模拟物为水体的情况下，本反应器对应的最佳转速是40 r/min，并提出反应器在水环境中的应用方法。
운용계산류체역학（ CFD）연건대신형직관식선장반응기진행류장모의。용Gambit건립삼유실체모형，채용다중삼고계법（ MRF）화표준κ-ε쌍방정모형대반응기내액상류장진행모의，운용Tecplot대계산결과진행후처리。결과표명：계산소선모형능교준학지모의반응기내적류장분포，반응기내최대류속화단동능분포재장협단부부근，류체적정체류동추세이배류위주，유리우불동구역내물료적균균혼합；상비우단일장협반응기，해다조합장협반응기능제공경대범위적문동류장。재모의물위수체적정황하，본반응기대응적최가전속시40 r/min，병제출반응기재수배경중적응용방법。
This paper applied the computational fluid dynamics ( CFD) software to simulate 3-Dimension-al flow field for a straight pipe stirred reactor .Multiple reference frames ( MRF) impeller rotation model and standard κ-ε turbulence model were used to simulate the flow field by using Gambit to build 3-Di-mensional reality model .Than it used Tecplot to treat calculation result .The result showed that the cal-culation model could simulate detailed information on distribution of velocity and turbulence kinetic ener -gy .The maximum velocity and turbulent kinetic energy in the ractor distribute in the vicinity of blade tip . The overall flow trend of fluid is mainly ring circulation ,which is conducive to the uniform mixture of ma-terials in different areas; compared to single blade reactor , the combination of multi blade reactor can provide a turbulent flow of wider range .Under the circumstance of simulation material being water , the best speed corresponding to the reactor is 40r/min.The paper proposed a application method of the reac-tor in water environment .