Table 5 Range analysis results.

From: Optimization design of hump phenomenon of low specific speed centrifugal pump based on CFD and orthogonal test

Parameters

 

\(D_{2} /{\text{mm}}\)

\(b_{2} /{\text{mm}}\)

\(Z\)

\(\beta_{2} /^\circ\)

\(H/m\)

\(k_{1}\)

102.4581471

113.992783

102.4984369

107.5722555

\(k_{2}\)

108.1043547

108.0828687

109.1510265

108.8799577

\(k_{3}\)

113.5926329

102.0794829

112.5056713

107.7029215

\(s\)

11.13448577

11.91330008

10.00723445

1.307702183

\(P/{\text{kw}}\)

\(k_{1}\)

35.01132818

39.76145596

34.96318565

36.59892536

\(k_{2}\)

36.98497366

36.70492336

36.92180063

37.37662296

\(k_{3}\)

38.64978536

34.17970787

38.76110092

36.67053888

\(s\)

3.638457177

5.581748093

3.79791527

0.777697593

\(\eta /{\text{\% }}\)

\(k_{1}\)

81.2744815

79.62949897

81.41996113

81.64207752

\(k_{2}\)

81.24136316

81.79418699

82.15191007

81.07619647

\(k_{3}\)

81.80682677

82.89898547

80.75080022

81.60439743