sigma_i: Incipient Cavitation.

In ratral/hyd4gpv: General Purpose Valve functions

Description

The onset of cavitation, where only small vapor bubbles are formed in the flow stream. A cavitation level sufficient to begin minor, observable indications of pitting damage.

• Onset of cavitation;

• Detect using high-frequency vibration measurement;

• Very local phenomenon; Transient: random “ticks” sound;

• Low-level cavitation: usually not damaging;

• Occurs prior to the loss of capacity

Usage

sigma_i(x, b, d, e, fls)

Arguments

x	valve position
b	steepness
d	upper value
e	the effective dose
fls	liquid pressure recovery full open (max between fl and Flp/Fp)

Value

Sigma_i

ratral/hyd4gpv documentation built on Feb. 5, 2022, 10:30 p.m.