开封市中仪流量仪表有限公司
开封市中仪流量仪表有限公司
阅读：334发布时间：2021-12-27
标准孔板可膨胀性系数ε值K
|
p2/p1 | 0.98
| 0.96
| 0.94
| 0.92
| 0.90
| 0.85
| 0.80
| 0.75
| ||||
|
β | β | k= 1.2 | ||||||||||
| 0.000 0.562 0.669 0.740
0.750 | 0.000
0.100 0.200 0.300
0.316 | 0.993
0.993 0.992 0.991
0.991 | 0.986
0.985 0.984 0.983
0.983 | 0.980
0.978 0.976 0.974
0.974 | 0.973
0.970 0.968 0.966
0.965 | 0.966
0.963 0.960 0.957
0.957 | 0.949
0.944 0.940 0.936
0.935 | 0.932
0.926 0.920 0.914
0.913 | 0.915
0.907 0.900 0.893
0.892 | |||
| k= 1.3 | ||||||||||||
| 0.000 0.562 0.669 0.740
0.750 | 0.000
0.100 0.200 0.300
0.316 | 0.994
0.993 0.993 0.992
0.992 | 0.987
0.986 0.985 0.984
0.984 | 0.981
0.979 0.978 0.976
0.976 | 0.975
0.973 0.970 0.968
0.968 | 0.968
0.966 0.963 0.960
0.960 | 0.953
0.949 0.945 0.941
0.940 | 0.937
0.949 0.945 0.941
0.940 | 0.921
0.914 0.908 0.901 0.900 | |||
| k= 1.4 | ||||||||||||
| 0.000 0.562 0.669 0.740
0.750 | 0.000
0.100 0.200 0.300
0.316 | 0.994
0.994 0.993 0.993
0.993 | 0.988
0.987 0.986 0.985
0.985 | 0.982
0.981 0.979 0.978
0.978 | 0.977
0.975 0.973 0.971
0.970 | 0.971
0.968 0.966 0.963
0.963 | 0.956
0.952 0.949 0.945
0.944 | 0.941
0.936 0.931 0.926
0.926 | 0.927
0.921 0.914 0.908 0.907 | |||
| k= 1.66 | ||||||||||||
| 0.000 0.562 0.669 0.740
0.750 | 0.000
0.100 0.200 0.300
0.316 | 0.995
0.995 0.994 0.994
0.994 | 0.990
0.989 0.988 0.988
0.987 | 0.985
0.984 0.983 0.981
0.981 | 0.980
0.979 0.977 0.975
0.975 | 0.975
0.973 0.971 0.969
0.969 | 0.963
0.960 0.957 0.953
0.953 | 0.951
0.946 0.942 0.938
0.937 | 0.938
0.933 0.928 0.922 0.922 | |||
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