Qualitatively explain the shifting of performance curves in Figure 5.8 c, d, and e. These curves represent the effect of increase in diameter, speed, and viscosity of the fluids. P, H H, + H2 H P, P2...

Qualitatively explain the shifting of performance curves in Figure 5.8 c, d, and e. These curves represent the effect of increase in diameter, speed, and viscosity of the fluids.

Extracted text: Qualitatively explain the shifting of performance curves in Figure 5.8 c, d, and e. These curves represent the effect of increase in diameter, speed, and viscosity of the fluids. P, H H, + H2 H P, P2 P2 H, Q, +Q Q (b) H H Dincreasing N increasing (c) (d) H u increasing (e) FIGURE 5.8 Head versus flow for various situations: (a) pumps in series, (b) pumps in parallel, (c) increasing impeller diam- eter, (d) increasing speed, (e) increasing viscosity.