Simulation results for the case of a stub diameter D3 = 15 mm with various stub lengths (L3) and an instantaneous valve closure of tc = 0.0 s
f . | Without connection stub HWS-Bmax (m) . | With connection stub . | ErrC-B(ws) (%) . | |||
---|---|---|---|---|---|---|
L3 (m) . | HCmax (m) . | tCmax (s) . | Formula for tCmax . | |||
Col. (1) . | Col. (2) . | Col. (3) . | Col. (4) . | Col. (5) . | Col. (6) . | Col. (7) . |
Frictionless f1 = f2 = f3 = 0 | 212.03 | 0.02 | 414.02 | 0.01002 | tc + L2/a2 + L3/a3 | 95.26 |
0.05 | 414.02 | 0.01005 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.10 | 414.02 | 0.01010 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.20 | 414.02 | 0.01020 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.30 | 414.02 | 0.01030 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.40 | 414.02 | 0.01040 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.50 | 414.02 | 0.01050 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.60 | 414.02 | 0.01060 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.70 | 414.02 | 0.01070 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.80 | 414.02 | 0.01080 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.90 | 414.02 | 0.01190 | tc + L2/a2 + L3/a3 | 95.26 | ||
1.00 | 414.02 | 0.01100 | tc + L2/a2 + L3/a3 | 95.26 | ||
With friction f1 = 0.018 f2 = 0.018 f3 = 0.073 | 196.03 | 0.02 | 381.75 | 0.01006 | tc + L2/a2 + 3L3/a3 | 94.74 |
0.05 | 381.75 | 0.01015 | tc + L2/a2 + 3L3/a3 | 94.74 | ||
0.10 | 381.75 | 0.01030 | tc + L2/a2 + 3L3/a3 | 94.74 | ||
0.20 | 381.67 | 0.01060 | tc + L2/a2 + 3L3/a3 | 94.70 | ||
0.30 | 381.60 | 0.01090 | tc + L2/a2 + 3L3/a3 | 94.66 | ||
0.40 | 381.50 | 0.01120 | tc + L2/a2 + 3L3/a3 | 94.61 | ||
0.50 | 381.42 | 0.01150 | tc + L2/a2 + 3L3/a3 | 94.57 | ||
0.60 | 381.34 | 0.01180 | tc + L2/a2 + 3L3/a3 | 94.53 | ||
0.70 | 381.26 | 0.01210 | tc + L2/a2 + 3L3/a3 | 94.49 | ||
0.80 | 381.18 | 0.01240 | tc + L2/a2 + 3L3/a3 | 94.45 | ||
0.90 | 381.10 | 0.01270 | tc + L2/a2 + 3L3/a3 | 94.41 | ||
1.00 | 381.02 | 0.01300 | tc + L2/a2 + 3L3/a3 | 94.37 |
f . | Without connection stub HWS-Bmax (m) . | With connection stub . | ErrC-B(ws) (%) . | |||
---|---|---|---|---|---|---|
L3 (m) . | HCmax (m) . | tCmax (s) . | Formula for tCmax . | |||
Col. (1) . | Col. (2) . | Col. (3) . | Col. (4) . | Col. (5) . | Col. (6) . | Col. (7) . |
Frictionless f1 = f2 = f3 = 0 | 212.03 | 0.02 | 414.02 | 0.01002 | tc + L2/a2 + L3/a3 | 95.26 |
0.05 | 414.02 | 0.01005 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.10 | 414.02 | 0.01010 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.20 | 414.02 | 0.01020 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.30 | 414.02 | 0.01030 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.40 | 414.02 | 0.01040 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.50 | 414.02 | 0.01050 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.60 | 414.02 | 0.01060 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.70 | 414.02 | 0.01070 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.80 | 414.02 | 0.01080 | tc + L2/a2 + L3/a3 | 95.26 | ||
0.90 | 414.02 | 0.01190 | tc + L2/a2 + L3/a3 | 95.26 | ||
1.00 | 414.02 | 0.01100 | tc + L2/a2 + L3/a3 | 95.26 | ||
With friction f1 = 0.018 f2 = 0.018 f3 = 0.073 | 196.03 | 0.02 | 381.75 | 0.01006 | tc + L2/a2 + 3L3/a3 | 94.74 |
0.05 | 381.75 | 0.01015 | tc + L2/a2 + 3L3/a3 | 94.74 | ||
0.10 | 381.75 | 0.01030 | tc + L2/a2 + 3L3/a3 | 94.74 | ||
0.20 | 381.67 | 0.01060 | tc + L2/a2 + 3L3/a3 | 94.70 | ||
0.30 | 381.60 | 0.01090 | tc + L2/a2 + 3L3/a3 | 94.66 | ||
0.40 | 381.50 | 0.01120 | tc + L2/a2 + 3L3/a3 | 94.61 | ||
0.50 | 381.42 | 0.01150 | tc + L2/a2 + 3L3/a3 | 94.57 | ||
0.60 | 381.34 | 0.01180 | tc + L2/a2 + 3L3/a3 | 94.53 | ||
0.70 | 381.26 | 0.01210 | tc + L2/a2 + 3L3/a3 | 94.49 | ||
0.80 | 381.18 | 0.01240 | tc + L2/a2 + 3L3/a3 | 94.45 | ||
0.90 | 381.10 | 0.01270 | tc + L2/a2 + 3L3/a3 | 94.41 | ||
1.00 | 381.02 | 0.01300 | tc + L2/a2 + 3L3/a3 | 94.37 |