科技视界
科技視界
과기시계
Science&Technology Vision
2015年
25期
270-272
,共3页
平衡流量计%数值计算%阅晕50
平衡流量計%數值計算%閱暈50
평형류량계%수치계산%열훈50
Balanced flow meter%Numerical calculation%DN50
本项目选取DN50平衡流量计和孔板流量计为研究对象,通过CFX数值计算对比两种流量计的流动特性,平衡流量计孔板背面涡流明显减少,因此阻力减小、精度提高、稳定段缩短。本文详细介绍了数值计算流场区域、网格划分和物理模型等内容,对计算结果进行充分分析。
本項目選取DN50平衡流量計和孔闆流量計為研究對象,通過CFX數值計算對比兩種流量計的流動特性,平衡流量計孔闆揹麵渦流明顯減少,因此阻力減小、精度提高、穩定段縮短。本文詳細介紹瞭數值計算流場區域、網格劃分和物理模型等內容,對計算結果進行充分分析。
본항목선취DN50평형류량계화공판류량계위연구대상,통과CFX수치계산대비량충류량계적류동특성,평형류량계공판배면와류명현감소,인차조력감소、정도제고、은정단축단。본문상세개소료수치계산류장구역、망격화분화물리모형등내용,대계산결과진행충분분석。
This program researches the DN50 balanced flow meter and the orifice flow meter, and compares flowing characteristic between them by CFX. The eddy of balanced flow meter reduces obviously, therefore the resistance of balanced flow meter is lower, the precision is higher, and the steady tube is shorter than the orifice flow meter. This text detailedly introduces the numerical calculation's flowing area、grid plotting、physical model and so on, and fully analyses the result of numerical calculation.