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| 两种湍流模型在多孔孔板流场数值计算中的比较 | |
| 引用本文： | 赵珊珊,张涛,于洪仕,郑丹丹. 两种湍流模型在多孔孔板流场数值计算中的比较[J]. 化工机械, 2013, 0(6): 783-787,828 |
| 作者姓名： | 赵珊珊 张涛 于洪仕 郑丹丹 |
| 作者单位： | [1]天津大学电气与自动化工程学院 [2]辽宁工程技术大学电子与信息工程学院 |
| 摘 要： | 根据多孔孔板流量计的流场特点选择SST四方程和SST k-ω湍流模型对多孔孔板进行仿真计算,将流出系数计算结果与实流实验结果进行比较。结果表明:相对于SST k-ω湍流模型来说,SST四方程湍流模型更适合计算多孔孔板流量计的流场,而且雷诺数较小时计算精度较高。另外,多孔孔板流量计的环隙比接近1时流出系数线性度最好,达0.8%;环隙比远小于1时流出系数线性度最差,为3.6%。 |
| 关 键 词： | 多孔孔板流量计 流出系数 湍流模型 仿真 |
Comparison of Two Turbulence Models in Flow Field Numerical Calculation of Multi-orifice Flow Meter |
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| ZHAO Shan-shan,ZHANG Tao,YU Hong-shit＇,ZHENG Dan-dan. Comparison of Two Turbulence Models in Flow Field Numerical Calculation of Multi-orifice Flow Meter[J]. Chemical Engineering & Machinery, 2013, 0(6): 783-787,828 | |
| Authors: | ZHAO Shan-shan ZHANG Tao YU Hong-shit＇ ZHENG Dan-dan |
| Affiliation: | 1. Tianfin Key Laboratory of Process Measurement and Control, School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China; 2. School of Electronic and Information Engineering, Liaoning Technical University, Huludao 125105,China) |
| Abstract: | Basing on the flow field characteristics of multi-orifice flow meter, both SST （shear-stress trans- port） 4-equation and SST k-ω turbulence model were selected to simulate multi-orifice flow meter. Having el- flux coefficient＇ s calculation results compared with experimental results shows that, with respect to SST turbu- lence model, the SST 4-equation turbulence model is more suitable to calculate the flow field of multi-orifice flow meter, and the calculation precision is higher in the case of low Reynolds number; the linearity of the ef- flux coefficient C becomes best and reaches 0.8% when k closes to 1, and oppositely, the linearity of the ef- flux coefficient C becomes worst and reaches 3.6% when k gets less than 1. |
| Keywords: | muhi-orifice flow meter efflux coefficient turbulence model simulation |
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