离心泵全流场计算域三维造型方法
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摘要
建立能够准确描述所研究问题的计算域是CFD数值计算顺利进行的基础,且计算域的光顺程度还会影响网格划分的难易及网格生成的质量。借助Pro/E Wildfire 5.0三维造型软件,采用不同的造型方法对离心泵全流场计算域的各过流部件进行三维造型,且在相同的网格类型与间距情况下,对比分析不同造型方法对网格划分难易程度、生成网格的质量以及网格生成效率的影响,确定离心泵叶片、叶轮水体、蜗壳水体及腔体的最优造型方法并分析了不同造型方法出现差异的原因。
The accurate computational domain modeling is the basis of CFD calculation.The smooth degree of computational domain will impact the difficulty and quality of meshing.Different methods are adopted for modeling each flow components of whole flow field computational domain of centrifugal pump with Pro/E Wildfire 5.0.The effect of different modeling methods on the difficulty,quality and efficiency of meshing is analyzed in the case of the same type and spacing of mesh.Then,the optimal modeling methods of blade,impellers,volute and cavity of centrifugal pumps are provided,and the reasons for differences among the different modeling methods are analyzed.
The accurate computational domain modeling is the basis of CFD calculation.The smooth degree of computational domain will impact the difficulty and quality of meshing.Different methods are adopted for modeling each flow components of whole flow field computational domain of centrifugal pump with Pro/E Wildfire 5.0.The effect of different modeling methods on the difficulty,quality and efficiency of meshing is analyzed in the case of the same type and spacing of mesh.Then,the optimal modeling methods of blade,impellers,volute and cavity of centrifugal pumps are provided,and the reasons for differences among the different modeling methods are analyzed.
引文
[1]Anagnostopoulos J.A fast numerical method for flow analysisand blade design in centrifugal pump impellers[J].Computers&Fluids,2009,38(2):284-259.
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[5]董亮,刘厚林,谈明高,等.离心泵全流场与非全流场数值计算[J].排灌机械工程学报,2012,30(3):22-23.
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[7]杨方飞,林洪义.泵叶轮扭曲叶片三维实体造型[J].水泵技术,2002,(1):30-32.
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[9]俞志君,王基,刘敏.离心泵蜗壳参数化三维造型的研究[J].流体机械,2009,37(10):45-48.
[10]何援军.计算机图形学[M].北京:机械工业出版社,2006.
[2]Derakhshan S,Nourbakhsh A.Theoretical numerical and experi-mental investigation of centrifugal pumps inreverse operation[J].Experimental Thermal and Fluid Science,2008,32(8):1 620-1 627.
[3]谈明高,刘厚林,王勇,等.叶轮外径对离心泵内流影响的CFD分析[J].排灌机械,2009,27(5):314-318.
[4]马钥珺,赵记涛,杨玉敏.三维实体造型方法对CFD计算影响的研究[J].机电工程技术,2008,37(6):31-32.
[5]董亮,刘厚林,谈明高,等.离心泵全流场与非全流场数值计算[J].排灌机械工程学报,2012,30(3):22-23.
[6]刘厚林,袁寿其,施卫东,等.离心泵水力元件三维造型的研究[J].水泵技术,2003,(3):79-83.
[7]杨方飞,林洪义.泵叶轮扭曲叶片三维实体造型[J].水泵技术,2002,(1):30-32.
[8]董亮,刘厚林,谈明高,等.离心泵四面体网格质量衡量准则及优化算法[J].西安交通大学学报,2011,45(11):31-36.
[9]俞志君,王基,刘敏.离心泵蜗壳参数化三维造型的研究[J].流体机械,2009,37(10):45-48.
[10]何援军.计算机图形学[M].北京:机械工业出版社,2006.