Liquid Dynamics - Pulsation Analysis, Diagnostics, and Software Models

Pulsation Analysis and Diagnostics,
Removing the Mystery - "Exposing the Witchcraft"
In graphics and cartoons
Being equipped to discuss the problem, and understand the answers.

A. Shaking the pipe generates pressure pulses.

B. How to turn pressure waves instead of reflecting them.

C. Transient dissipation. Acoustic Volumes.

D. Reduce pipe sizes.

E. Diameter changes are points of reflection.

F. Be careful of orifices.

Pressure VELOCITY - 3600mph, goes a mile in a second. Mass flow only 15 mph. How resonant pressure AMPLIFICATION can occur.

The vital importance of LARGE DIAMETER. Why pressure changes must pass into flow - not go passed any attenuator.

Pumps, with one exception, are not the cause of shock, surge or pulsation pressures. HARD arteries and PIPES kill people and pumps.

Gauges are "PRESSURE INDICATORS". That is why the symbol is Pl. They can only indicate dynamic activity, gauges can not measure it.

SUCTION SUPPLY LINE PROBLEMS. When starting flow in a pipe to a pump, and repetitively in the case of a reciprocating machine.

Preventing supply piping from destroying a pump. TWO DO'S TWO DON'TS. Decoupling system response from negative spike excitation.

"CONTROLLERS", Back pressure valves, Relief Valves, and Check valves, all disrupt mass flow and so the pressure equilibrium.

Synopsis overview. Flow is like the tide, it rises and falls. Pressure is like the waves, they do the damage by repeatedly hammering.

CATALOG PAGES in PDF
PUBLICATION 1
Go to Entire Catalog

Page 1 - Pub. 1 Familiarization Cover	PDF p1
Page 2 - Familization A, B, C.	PDF p2
Page 3 - Familization C, D, E, F.	PDF p3
Page 4 - Pressure volume & amplifiers	PDF p4
Page 5 - Pulse interception	PDF p5
Page 6 - Hard system destroy pumps	PDF p6
Page 7 - Data capture at kHz.	PDF p7
Page 8 - Suction supply line problems	PDF p8
Page 9 - 2 Do's & 2 Don'ts	PDF p9
Page 10 - Brief A to Z of pulsation	PDF p10
Page 11 - "Controllers"	PDF p11
Page 12 - Synopsis, overview	PDF p12