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Criteria for Prevention of Cavitation - Coggle Diagram
Criteria for Prevention of Cavitation
Calculate pressure distribution
Real incidence angle
Obtained from circulation theory
Used to determine
maximum reduction of pressure
on back of section
and compare with static pressure
True angle of incidence
Depends on wake pattern
Cavitation occur
lower revolution
Cavitation delayed or avoided
making wake more even
attending to
Shape of hull
Clearances
Propeller rake
Alignment of bossings / shafts
Struts
Only possible
incorporate in formulaes
Pressure distribution
Angle of attack
Cavitation number