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1. Equal ratios of pipe length to wavelength

2. Equal ratios of pipe cross-sectional area

3. Model pump speed adjusted to make the product of pulsation wavelength and frequency equal to the speed of sound in water

FIGURE 14 Comparison of pressure pulsation waveforms: (a) a double-suction in-phase centrifugal pump impeller and (b) a varying-phase (staggered) centrifugal pump impeller (Reference 9)
Survival Treasure

Survival Treasure

This is a collection of 3 guides all about survival. Within this collection you find the following titles: Outdoor Survival Skills, Survival Basics and The Wilderness Survival Guide.

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