[Fluent learner]

Hi
What is the relation or formula between Swirl Ratio and Swirl(1/min)?
If i have SR how can i calculate Swirl(1/min)
Thanks

[MFGT]

Hi,

swirl ratio is defined as omega3/omega_crankshaft

omega3 is the angular velocity around center of mass in z direction, which i guess is what you want to have as Swirl (1/min).

omega_crankshaft (1/min) should be defined as 2*PI*rpm, so this is what you need to multiply your SR with.

See Eq. 22.2 of the Theory manual for futher information.

[Fluent learner]

Originally Posted by MFGT

Hi,

swirl ratio is defined as omega3/omega_crankshaft

omega3 is the angular velocity around center of mass in z direction, which i guess is what you want to have as Swirl (1/min).

omega_crankshaft (1/min) should be defined as 2*PI*rpm, so this is what you need to multiply your SR with.

See Eq. 22.2 of the Theory manual for futher information.

maybe....nice....